Under Marbles in boxes (in Algorithms) Posted on 20170816 (3 Comments) 
 solution by Charlie (20170816 11:41:37) 
Under Divisibility in a sequence (in Numbers) Posted on 20170812 (2 Comments) 
 Existence proof (lowest pair requiring 79) by Charlie (20170812 12:36:27) 
 proof (but not a proof that this is the lowest achievable) by Charlie (20170812 11:42:49) 
Under Bob and Alice make a poor choice (in Numbers) Posted on 20170811 (7 Comments) 
 re(2): solution (spoiler)  precision check by Charlie (20170811 14:29:42) 
 solution (spoiler) by Charlie (20170811 12:33:55) 
Under Straight or rotated (in Numbers) Posted on 20170810 (3 Comments) 
 program and solution (spoilers) by Charlie (20170810 11:16:22) 
Under Even (related) chances (in Probability) Posted on 20170809 (4 Comments) 
 solution (spoiler) by Charlie (20170809 11:34:37) 
Under Palindromic sum (in Just Math) Posted on 20170808 (3 Comments) 
 The "grunt work" left to the computer (spoiler) by Charlie (20170808 10:13:42) 
Under A text sans (in Word Problems) Posted on 20170807 (1 Comments) 
 He who hesitates is lost by Charlie (20170807 12:33:13) 
Under A unique Heronian triangle (in Geometry) Posted on 20170805 (6 Comments) 
 re(4): easy  spoiler by Charlie (20170806 07:58:16) 
Under Published in the thirties (in Famous Riddles) Posted on 20170803 (3 Comments) 
 An Isle of Joy (this is not Kansas any more) (spoiler) by Charlie (20170804 10:18:07) 
Under Think big (in Numbers) Posted on 20170803 (2 Comments) 
 Actually it could be done with VB by Charlie (20170803 11:08:15) 
 Think Big ... Think UBASIC (spoilers) by Charlie (20170803 10:31:36) 
Under Dec = xeh (in Numbers) Posted on 20170802 (5 Comments) 
 computer solutions. Don't know the commonality. by Charlie (20170802 14:16:35) 
Under Two parallelograms (in Geometry) Posted on 20170801 (3 Comments) 
 GSP by Charlie (20170801 10:11:30) 
Under Find this word (in Word Problems) Posted on 20170731 (6 Comments) 
 Funny... (spoilers) by Charlie (20170731 10:27:48) 
Under Add'em all ! (in Numbers) Posted on 20170727 (3 Comments) 
 computer solution (spoiler) by Charlie (20170727 10:30:14) 
Under Pandigitals Divided by 11 (in Numbers) Posted on 20170723 (4 Comments) 
 computer exploration by Charlie (20170723 10:39:48) 
Under Almostpandigital sets (in Numbers) Posted on 20170722 (1 Comments) 
 computer solution by Charlie (20170722 11:32:40) 
Under 2 bases (in Numbers) Posted on 20170721 (2 Comments) 
 computer solution (spoiler) by Charlie (20170721 10:47:40) 
Under 3 and 4digit numbers (in Numbers) Posted on 20170717 (6 Comments) 
 re(3): Just counting (spoiler) by Charlie (20170717 21:59:59) 
 re: Just counting (spoiler) by Charlie (20170717 13:53:40) 
Under Brazilian numbers (in Sequences) Posted on 20170715 (4 Comments) 
 Program had a bug  fixed it by Charlie (20170715 12:36:30) 
Under Unpainting Black (in Probability) Posted on 20170714 (5 Comments) 
 Details of the results by Charlie (20170715 11:29:16) 
 corrected program with revised answer by Charlie (20170714 22:20:16) 
 proposed computer solution by Charlie (20170714 17:05:24) 
 re: Preliminary work & thoughts by Charlie (20170714 10:13:03) 
Under Make the proof fullproof (in Word Problems) Posted on 20170711 (1 Comments) 
 first the computer,then a human correction by Charlie (20170711 10:48:27) 
Under Pythagorean H/L ratios (in Just Math) Posted on 20170708 (2 Comments) 
 computer solution by Charlie (20170708 11:49:48) 
Under Commutative Exponentiation (in Just Math) Posted on 20170707 (5 Comments) 
 exploration by Charlie (20170707 14:22:36) 
Under Just add 2 letters (in Word Problems) Posted on 20170706 (2 Comments) 
 computer findings (spoilers) by Charlie (20170706 09:53:55) 
Under 4 couples make a new word (in Word Problems) Posted on 20170704 (3 Comments) 
 The preceding subject should have been computer solution (spoiler) by Charlie (20170704 13:38:54) 
 No Subject by Charlie (20170704 13:37:01) 
Under Larger area / larger perimeter (in Numbers) Posted on 20170703 (3 Comments) 
 computer solution by Charlie (20170703 14:24:05) 
Under 38s and Bunches of 1s (in Numbers) Posted on 20170630 (7 Comments) 
 re(2): No proof but a pattern found by Charlie (20170630 10:14:56) 
 No proof but a pattern found by Charlie (20170630 09:04:10) 
Under Square Egyptians (in Numbers) Posted on 20170628 (1 Comments) 
 computer solution by Charlie (20170628 13:59:04) 
Under Words and hints (in General) Posted on 20170627 (1 Comments) 
 computer aided solution by Charlie (20170627 12:23:17) 
Under 2017 to start with (in Numbers) Posted on 20170623 (7 Comments) 
 re(2): computer results (spoilers) extended by Charlie (20170624 17:32:15) 
 program by Charlie (20170623 18:17:48) 
 computer results (spoilers) by Charlie (20170623 18:11:50) 
Under Letters to digits to letters (in Numbers) Posted on 20170622 (1 Comments) 
 computer solution by Charlie (20170622 10:34:01) 
Under Odd Egyptians (in Numbers) Posted on 20170621 (2 Comments) 
 re: Programming exercise (spoiler); 20/20 hindsight by Charlie (20170621 21:53:57) 
 Programming exercise (spoiler); 20/20 hindsight by Charlie (20170621 16:02:27) 
Under Make It Even Again (in Probability) Posted on 20170620 (4 Comments) 
 computer findings by Charlie (20170620 15:18:19) 
Under Punchline I (in Word Problems) Posted on 20170619 (3 Comments) 
 Part 2: Of course it was... by Charlie (20170619 14:37:35) 
Under Love story (in General) Posted on 20170617 (1 Comments) 
 computer solution by Charlie (20170617 18:49:13) 
Under Candy lover (in Liars and Knights) Posted on 20170612 (3 Comments) 
 solution by Charlie (20170612 13:56:57) 
Under A madness sequence (50 digits) (in Sequences) Posted on 20170611 (1 Comments) 
 solution by Charlie (20170611 15:58:14) 
Under Add another line (in General) Posted on 20170610 (6 Comments) 
 re(4): solution a typo by Charlie (20170611 14:52:18) 
 re(2): solution please correct spoiler by Charlie (20170611 10:04:49) 
 solution by Charlie (20170610 10:52:26) 
Under A powerful anagram (in Word Problems) Posted on 20170609 (2 Comments) 
 annotated computer listing by Charlie (20170609 18:24:36) 
Under 18 is not enough (in Sequences) Posted on 20170606 (2 Comments) 
 solution by Charlie (20170606 11:22:53) 
Under Red vs Black Cuts (in Numbers) Posted on 20170605 (8 Comments) 
 solution by Charlie (20170605 10:43:06) 
Under Ulam numbers (in Numbers) Posted on 20170603 (5 Comments) 
 re: The proof and the bonus by Charlie (20170603 14:34:24) 
 The proof and the bonus by Charlie (20170603 14:31:38) 
Under Memory Match Game (in Probability) Posted on 20170531 (9 Comments) 
 re: Question by Charlie (20170602 04:57:16) 
 re(3): computer discovery by Charlie (20170601 10:32:45) 
 re(2): computer discovery by Charlie (20170601 08:58:32) 
 computer discovery by Charlie (20170531 16:20:20) 
Under N dice (in Probability) Posted on 20170525 (3 Comments) 
 computer aided solution by Charlie (20170525 12:14:14) 
Under Higher Powers of Eleven (in Numbers) Posted on 20170524 (4 Comments) 
 re: Analytic Solution by Charlie (20170526 15:45:40) 
 computer solution by Charlie (20170524 11:32:24) 
Under Four balls (in Probability) Posted on 20170519 (22 Comments) 
 re(4): Who's right by Charlie (20170521 22:13:24) 
 re(2): Who's right by Charlie (20170521 16:37:54) 
 re: I agree with Brian by Charlie (20170519 23:01:06) 
 Solution by Charlie (20170519 11:00:34) 
Under Hands off! (in Weights and Scales) Posted on 20170516 (3 Comments) 
 Two ways of looking at it both agree by Charlie (20170516 10:36:39) 
Under Inder Taneja's discovery (in Numbers) Posted on 20170511 (4 Comments) 
 re: How far could the list be extended? by Charlie (20170512 13:50:00) 
 How far could the list be extended? by Charlie (20170512 13:17:11) 
 A step beyond Taneja's list by Charlie (20170511 22:42:29) 
 some computer results by Charlie (20170511 14:08:31) 
Under One more line (in Logic) Posted on 20170510 (3 Comments) 
 trivial solution?  or is this not the solution? by Charlie (20170510 10:32:24) 
Under The length of the belt (in Geometry) Posted on 20170509 (5 Comments) 
 solution by Charlie (20170509 09:35:50) 
Under No software allowed ! (in Numbers) Posted on 20170507 (6 Comments) 
 re(2): Solution by Charlie (20170507 16:26:51) 
Under All ten (in Numbers) Posted on 20170506 (1 Comments) 
 computer solution by Charlie (20170506 13:35:05) 
Under Sum and Difference II (in Numbers) Posted on 20170505 (1 Comments) 
 computer solution by Charlie (20170505 13:47:42) 
Under Pandigital + (in Probability) Posted on 20170503 (3 Comments) 
 Analytic solution with Computer calculations by Charlie (20170503 14:19:51) 
Under The smallest nonconformist (in Numbers) Posted on 20170502 (3 Comments) 
 with computer assistance by Charlie (20170502 12:47:47) 
Under A cent or more? (in Probability) Posted on 20170501 (2 Comments) 
 conditional nature of the problem (spoilers) by Charlie (20170501 08:56:54) 
Under Smallest pandifibo number (in Numbers) Posted on 20170429 (1 Comments) 
 UBASIC solution by Charlie (20170429 13:57:59) 
Under Prime with no prime digits (in Numbers) Posted on 20170425 (5 Comments) 
 BTW, why there are no 5's by Charlie (20170428 15:38:57) 
 re(2): solution via computer my remarks by Charlie (20170426 11:45:50) 
 solution via computer by Charlie (20170425 09:18:01) 
Under Liars can figure (in Liars and Knights) Posted on 20170424 (4 Comments) 
 re: I am between two answers (spoiler) by Charlie (20170424 10:31:01) 
Under Is it a conic? (in Geometry) Posted on 20170419 (7 Comments) 
 I guess my computer finding actually agrees, as do both others. by Charlie (20170419 20:36:36) 
 Computer findings  probably wrong, based on previous posts by Charlie (20170419 14:09:46) 
Under A factorial in seconds (in Numbers) Posted on 20170418 (6 Comments) 
 solution in under 200 seconds with calculator by Charlie (20170418 09:21:01) 
Under Polygon Overlap (in Geometry) Posted on 20170417 (1 Comments) 
 solution by Charlie (20170417 10:49:34) 
Under Pandigital and square (in Numbers) Posted on 20170415 (6 Comments) 
 computer solution by Charlie (20170415 14:22:31) 
Under Growth Potential (in Algorithms) Posted on 20170413 (4 Comments) 
 Two proposed proofs by Charlie (20170413 10:03:35) 
Under Names in Boxes (in Logic) Posted on 20170409 (10 Comments) 
 re(3): Loops by Charlie (20170412 14:41:51) 
 re: Loops by Charlie (20170412 10:54:02) 
Under Excellent numbers (in Numbers) Posted on 20170408 (3 Comments) 
 computer solution: 6, 8 and 10digits by Charlie (20170408 12:17:11) 
Under The magnificent twelve (in Numbers) Posted on 20170407 (2 Comments) 
 computer solution (spoiler)  with a caveat on the restrictions by Charlie (20170407 12:26:51) 
Under Three mirrored multiplications (in Numbers) Posted on 20170402 (1 Comments) 
 computer solution by Charlie (20170402 12:40:21) 
Under Prime power puzzle (in Just Math) Posted on 20170401 (8 Comments) 
 re(2): Half A proof by Charlie (20170402 19:08:32) 
 re: computer so far by Charlie (20170402 09:56:47) 
 computer so far by Charlie (20170401 15:57:10) 
Under Why is it D2? (in Numbers) Posted on 20170327 (4 Comments) 
 In the other spirit by Charlie (20170327 11:15:37) 
 part 2 by Charlie (20170327 10:41:15) 
 A different answer by Charlie (20170327 10:37:55) 
Under 1 is one of them (in Numbers) Posted on 20170325 (2 Comments) 
 computer solution by Charlie (20170325 14:51:18) 
Under True for nine and up (in Numbers) Posted on 20170324 (3 Comments) 
 With some computer aid by Charlie (20170324 11:00:45) 
Under Elongated Pentagonal Orthocupola's vertices (in Shapes) Posted on 20170320 (3 Comments) 
 re: solution by Charlie (20170320 12:31:07) 
Under Leave no stone unturned (in Logic) Posted on 20170319 (5 Comments) 
 re: Other cases by Charlie (20170319 14:33:33) 
 solution by Charlie (20170319 13:32:00) 
Under A rare palindrome (in Numbers) Posted on 20170318 (1 Comments) 
 computer solution by Charlie (20170318 13:48:46) 
Under Primes and factors (in Numbers) Posted on 20170317 (2 Comments) 
 computer solution carried beyond by Charlie (20170317 10:23:55) 
Under Same side story (in Probability) Posted on 20170316 (5 Comments) 
 re: Corrected solution by Charlie (20170329 10:46:12) 
Under Integers and their sums of digits (in Just Math) Posted on 20170313 (3 Comments) 
 computer solution by Charlie (20170319 11:38:14) 
Under Facing each other (in Just Math) Posted on 20170307 (2 Comments) 
 solution (spoiler) by Charlie (20170307 09:39:18) 
Under Only real x counted (in Probability) Posted on 20170301 (3 Comments) 
 solution (spoiler) by Charlie (20170301 10:52:32) 
Under a KISS puzzle (in Just Math) Posted on 20170227 (2 Comments) 
 solution by Charlie (20170227 10:10:00) 
Under Areas ratio (in Probability) Posted on 20170224 (1 Comments) 
 solution by Charlie (20170224 11:18:28) 
Under Odds are ... (in Probability) Posted on 20170214 (8 Comments) 
 Higher numbers before overflow by Charlie (20170214 11:42:28) 
 probabilities by Charlie (20170214 11:34:26) 
 re: Argument (no math) by Charlie (20170214 10:03:01) 
Under Most words from your word (in Word Problems) Posted on 20170210 (10 Comments) 
 re: some computer results  the program by Charlie (20170210 23:31:27) 
 some computer results by Charlie (20170210 23:27:17) 
Under Lies, truth, and logic (in Liars and Knights) Posted on 20170209 (2 Comments) 
 Lots of solutions even between 20 and 40 by Charlie (20170209 21:31:10) 
Under A better approximate Pythagorean Theorem (in Calculus) Posted on 20170208 (1 Comments) 
 heuristic estimate based on computer program by Charlie (20170208 10:51:42) 
Under Forward and Backward Word Values (in General) Posted on 20170207 (5 Comments) 
 I don't know what truncated my previous list, but by Charlie (20170208 08:28:57) 
 computer solution (spoiler) by Charlie (20170207 12:51:37) 
Under Given VI, evaluate VII (in Sequences) Posted on 20170201 (1 Comments) 
 computer solution (spoiler) by Charlie (20170201 10:55:25) 
Under Multiples with 3 (in Numbers) Posted on 20170131 (3 Comments) 
 computer solution, taken beyond by Charlie (20170131 12:59:29) 
Under Opening your eyes (in Famous Riddles) Posted on 20170128 (2 Comments) 
 A Google search on the wording by Charlie (20170129 12:49:59) 
Under A false conjecture (in Numbers) Posted on 20170127 (7 Comments) 
 re: computer attempt by Charlie (20170127 14:24:25) 
 computer attempt by Charlie (20170127 12:37:47) 
Under 1,3,8 ...extend! (in Numbers) Posted on 20170126 (4 Comments) 
 computer finding by Charlie (20170126 14:38:53) 
Under Ain't she clever? (in Just Math) Posted on 20170124 (1 Comments) 
 solution given certain assumptions by Charlie (20170124 11:15:52) 
Under Topical Quotation V (in Word Problems) Posted on 20170118 (1 Comments) 
 Hint by Charlie (20170119 22:30:20) 
Under An interesting recurrence (in Numbers) Posted on 20170117 (5 Comments) 
 computer solution by Charlie (20170117 11:20:42) 
Under Age Progression (in Numbers) Posted on 20170116 (3 Comments) 
 the cases  to age 100 by Charlie (20170116 16:01:35) 
Under 2nd grade math (in Probability) Posted on 20170112 (4 Comments) 
 re: solution  so about that math test by Charlie (20170113 10:55:22) 
 re: solution  simulation verification by Charlie (20170112 21:38:09) 
 solution by Charlie (20170112 14:48:35) 
Under (xâˆ’y)^ n = xy (in Just Math) Posted on 20170107 (2 Comments) 
 computer exploration by Charlie (20170107 14:46:42) 
Under From Tangent to Circle (in Geometry) Posted on 20170104 (4 Comments) 
 solution for part 2; outline for part 1 by Charlie (20170104 13:38:09) 
Under Counting brackets (in Just Math) Posted on 20170103 (1 Comments) 
 computer exploration and solution by Charlie (20170103 15:22:32) 
Under Which is the biggest? (in Numbers) Posted on 20170102 (2 Comments) 
 solution by Charlie (20170102 10:43:01) 
Under Congruent Incircles (in Geometry) Posted on 20170101 (6 Comments) 
 numerical computer solution by Charlie (20170101 12:43:06) 
Under Skill or food? (in Numbers) Posted on 20161228 (5 Comments) 
 re(3): Crazy for coconuts extra hint by Charlie (20161229 10:39:38) 
 software solution by Charlie (20161228 11:29:28) 
Under Who discovered the secret? (in Logic) Posted on 20161227 (4 Comments) 
 solution by Charlie (20161227 09:45:00) 
Under Nothing's perfect. (in Sequences) Posted on 20161224 (1 Comments) 
 computer exploration by Charlie (20161226 08:56:34) 
Under A chain of powers (in Sequences) Posted on 20161222 (1 Comments) 
 computer observations by Charlie (20161222 09:37:15) 
Under Prime candidates (in Just Math) Posted on 20161220 (5 Comments) 
 computer exploration by Charlie (20161220 13:34:08) 
Under Legally Blonde (in Liars and Knights) Posted on 20161219 (8 Comments) 
 another way by Charlie (20161219 10:31:34) 
Under Traveling with Luggage (in Logic) Posted on 20161215 (2 Comments) 
 computer solution (spoiler) by Charlie (20161215 10:38:16) 
Under Decimal and Binary Representation (in Numbers) Posted on 20161213 (3 Comments) 
 computer solution (spoiler) by Charlie (20161214 10:23:49) 
 re: hint based somewhat on computer findings by Charlie (20161213 14:11:27) 
 hint based somewhat on computer findings by Charlie (20161213 10:31:41) 
Under Pentagon Partitions (in Shapes) Posted on 20161211 (3 Comments) 
 re: A solution (spoiler) by Charlie (20161212 11:19:42) 
Under Gluing Cubes (in Shapes) Posted on 20161208 (1 Comments) 
 proposed solution by Charlie (20161208 10:28:20) 
Under A ragman from 3 to 10 (in Word Problems) Posted on 20161207 (2 Comments) 
 9 and 10 by Charlie (20161207 13:32:40) 
 computer solution for lengths 5 through 8 by Charlie (20161207 11:08:02) 
Under Moving Two Rooks (in Games) Posted on 20161206 (2 Comments) 
 re: For the Win (spoiler) by Charlie (20161206 15:37:11) 
Under Four integers (in Numbers) Posted on 20161204 (8 Comments) 
 extending the limit to 1700 (spoiler) by Charlie (20161204 11:05:42) 
 computer solution (spoiler) by Charlie (20161204 11:01:08) 
Under A biased random walk (in Probability) Posted on 20161201 (1 Comments) 
 computer exploration by Charlie (20161201 09:21:44) 
Under 7+8=12 ?? (in Just Math) Posted on 20161130 (3 Comments) 
 computer solution (spoiler) by Charlie (20161130 10:29:30) 
Under composite function (in Calculus) Posted on 20161129 (2 Comments) 
 by graphing by Charlie (20161129 13:59:19) 
Under 26 out of 50 (in Just Math) Posted on 20161125 (10 Comments) 
 re: Inelegant proof? by Charlie (20161128 08:05:55) 
Under Prime repunits (in Numbers) Posted on 20161124 (4 Comments) 
 computer exploration by Charlie (20161124 17:59:10) 
Under On the same floor (in Just Math) Posted on 20161122 (13 Comments) 
 re: the computer says   my mistake by Charlie (20161123 20:22:57) 
 the computer says by Charlie (20161123 20:14:31) 
 re(2): How many...... g o o f by Charlie (20161122 22:17:10) 
 How many by Charlie (20161122 11:23:45) 
Under At least twice (in Numbers) Posted on 20161117 (5 Comments) 
 below four trillion by Charlie (20161117 15:18:11) 
 re(2): a star ... a hint by Charlie (20161117 12:57:26) 
 a start by Charlie (20161117 09:31:01) 
Under Maximizing the sum (in Numbers) Posted on 20161116 (4 Comments) 
 the program by Charlie (20161116 10:22:00) 
 part b in more concise form by Charlie (20161116 10:19:56) 
 list continued by Charlie (20161116 10:15:12) 
 e pluribus duo by Charlie (20161116 10:13:46) 
Under A radical problem (in Just Math) Posted on 20161115 (2 Comments) 
 solution by Charlie (20161115 10:39:36) 
Under Don't be confused (in General) Posted on 20161114 (4 Comments) 
 using a calculator by Charlie (20161114 12:41:24) 
Under Linear*Quadratic = Square (in Just Math) Posted on 20161112 (2 Comments) 
 computer exploration by Charlie (20161112 10:59:45) 
Under 6 given, 2 wanted (in Sequences) Posted on 20161111 (5 Comments) 
 re(3): Hint #2: by Charlie (20161114 07:53:59) 
 re: Hint #2: by Charlie (20161113 13:20:20) 
Under 63 Division Decision (in Just Math) Posted on 20161110 (3 Comments) 
 computer solution by Charlie (20161110 12:42:32) 
Under AABBCC and Perfect Square (in Just Math) Posted on 20161109 (6 Comments) 
 computer solution by Charlie (20161109 13:37:06) 
Under Lucas Digits Look (in Just Math) Posted on 20161107 (9 Comments) 
 re: solution+ by Charlie (20161107 10:59:44) 
 solution+ by Charlie (20161107 10:54:14) 
Under Your conclusion requested (in Logic) Posted on 20161103 (9 Comments) 
 re(4): Answer .... to your questions by Charlie (20161112 15:07:54) 
 re: Answer by Charlie (20161110 15:43:37) 
 My conclusion by Charlie (20161103 09:22:32) 
Under A peculiar triplet (in Just Math) Posted on 20161101 (7 Comments) 
 re(2): The triple without complete proof by Charlie (20161101 13:42:44) 
 re: The triple without complete proof by Charlie (20161101 13:40:17) 
Under Equal Temperatures (in Just Math) Posted on 20161031 (6 Comments) 
 re(2): computer solution by Charlie (20161031 19:19:55) 
 re: No Subject by Charlie (20161031 11:54:31) 
 computer solution by Charlie (20161031 11:53:55) 
Under Reciprocal Period Poser (in Just Math) Posted on 20161029 (2 Comments) 
 computer solution by Charlie (20161029 10:49:24) 
Under Symmetry helps! (in Just Math) Posted on 20161026 (7 Comments) 
 computer exploration by Charlie (20161026 12:08:23) 
Under Figuring FortyNine and Sequence (in Sequences) Posted on 20161025 (2 Comments) 
 No proof, but ... by Charlie (20161025 09:18:28) 
Under Totient Trial (in Just Math) Posted on 20161024 (2 Comments) 
 computer solution by Charlie (20161024 19:16:26) 
Under Prime and Twice Square (in Just Math) Posted on 20161022 (4 Comments) 
 re: A solution by Charlie (20161022 15:54:41) 
Under A little twist (in Just Math) Posted on 20161021 (4 Comments) 
 re(2): computer solution.....yes,but... by Charlie (20161022 08:50:05) 
 computer solution by Charlie (20161021 14:46:29) 
Under Dodecahedron Chance Determination (in Probability) Posted on 20161020 (6 Comments) 
 re(3): clarification by Charlie (20161020 16:48:08) 
 re(2): clarification by Charlie (20161020 16:04:43) 
 For 1  12 by Charlie (20161020 15:30:10) 
 solution for puzzle as originally given by Charlie (20161020 15:13:11) 
Under Why not marry? (in Logic) Posted on 20161019 (6 Comments) 
 Interesting variation in first cousin marriage in U.S. by Charlie (20161019 14:37:22) 
 Two ways. by Charlie (20161019 08:55:46) 
Under Positively Positive (in Just Math) Posted on 20161018 (7 Comments) 
 findings by Charlie (20161018 16:18:25) 
Under Mismatch Muse (in Logic) Posted on 20161018 (1 Comments) 
 proposed solution by Charlie (20161018 10:58:05) 
Under Prime and Six Settlement (in Just Math) Posted on 20161017 (4 Comments) 
 solution by Charlie (20161017 10:51:13) 
Under get the real part of the problem (in Just Math) Posted on 20161016 (1 Comments) 
 solution by Charlie (20161016 11:13:54) 
Under this is the range of my root (in Just Math) Posted on 20161014 (1 Comments) 
 analysis then computation by Charlie (20161014 15:41:10) 
Under Phibobrick's dimensions (in Numbers) Posted on 20161014 (1 Comments) 
 proposed solution by Charlie (20161014 11:45:47) 
Under River Cross Resolution (in Weights and Scales) Posted on 20161012 (1 Comments) 
 computer solution by Charlie (20161012 12:21:50) 
Under Adding consecutive primes (in Just Math) Posted on 20161011 (1 Comments) 
 computer solution by Charlie (20161011 13:45:47) 
Under Four Digit Arithmetic (in Just Math) Posted on 20161011 (2 Comments) 
 computer solution by Charlie (20161011 09:52:41) 
Under Bridge Cross Baffle (in Logic) Posted on 20161010 (3 Comments) 
 Wouldda, Coudda, Shouldda done it by computer by Charlie (20161010 15:45:39) 
 proposed solution by Charlie (20161010 12:17:24) 
Under polynomial problem 3 (in Just Math) Posted on 20161008 (2 Comments) 
 D4? (spoiler) by Charlie (20161008 09:32:36) 
Under 2 sums modulo 7 (in Probability) Posted on 20161005 (3 Comments) 
 re(2): some computed values by Charlie (20161005 18:12:19) 
 re: some computed values by Charlie (20161005 14:49:05) 
 some computed values by Charlie (20161005 14:43:35) 
Under Additional solutions, please (in Just Math) Posted on 20161003 (3 Comments) 
 re(2): computer solution  final part by Charlie (20161003 18:10:37) 
 re: computer solution  continued by Charlie (20161003 18:09:13) 
 computer solution by Charlie (20161003 18:07:32) 
Under Unit Cube Paint Undertaking (in Shapes) Posted on 20160928 (6 Comments) 
 Considering all the possibilities by Charlie (20160928 15:29:47) 
 re: Interesting. by Charlie (20160928 12:23:22) 
Under No data  just a weighing problem (in General) Posted on 20160927 (2 Comments) 
 re: My solution by Charlie (20160927 16:02:30) 
Under Numbers' quantifiers (in Logic) Posted on 20160923 (4 Comments) 
 re(2): a try by Charlie (20160923 21:43:17) 
 a try by Charlie (20160923 15:48:50) 
Under Nonnegative Sum Nuance (in Probability) Posted on 20160923 (1 Comments) 
 solution by Charlie (20160923 10:44:58) 
Under A cyclic path (in Geometry) Posted on 20160921 (1 Comments) 
 first guess by Charlie (20160921 12:43:29) 
Under Biting the Apple (in Tricks) Posted on 20160921 (3 Comments) 
 re: One way to do it  close by Charlie (20160921 11:15:35) 
Under Real roots from three dice (in Probability) Posted on 20160920 (1 Comments) 
 computeraided solution by Charlie (20160920 15:43:45) 
Under Unbiased and Biased Choice (in Probability) Posted on 20160919 (1 Comments) 
 solution by Charlie (20160919 10:56:17) 
Under Provide the next number (in Sequences) Posted on 20160918 (2 Comments) 
 that, I guess, was hint enough by Charlie (20160924 13:11:25) 
Under GCD and LCM (in Just Math) Posted on 20160916 (1 Comments) 
 solution by Charlie (20160916 10:18:50) 
Under Ascending Hexadecimal Digits (in Just Math) Posted on 20160915 (1 Comments) 
 solution by Charlie (20160915 10:08:44) 
Under NegaTernary Nuance (in Algorithms) Posted on 20160914 (1 Comments) 
 solution by Charlie (20160914 11:01:03) 
Under Duodecimal Pandigital Divisibility Device (in Algorithms) Posted on 20160913 (2 Comments) 
 Choice of two algorithms by Charlie (20160913 09:51:04) 
Under Think twice (in Just Math) Posted on 20160912 (4 Comments) 
 The apparent solution by Charlie (20160912 10:33:10) 
Under Finding the hidden digit (in Tricks) Posted on 20160909 (1 Comments) 
 solution by Charlie (20160909 10:54:07) 
Under Dice Roll Resolution (in Probability) Posted on 20160908 (4 Comments) 
 re: Attempt at simulating part ii by Charlie (20160908 13:56:17) 
 Attempt at simulating part ii by Charlie (20160908 13:29:23) 
 Actual part i simulation by Charlie (20160908 13:11:57) 
 simulation of a simpler case by Charlie (20160908 12:10:15) 
Under Counting ARATs (in Numbers) Posted on 20160907 (4 Comments) 
 Corrected version for c<100,000 by Charlie (20160907 12:57:02) 
 re: programming mistake; also need faster computer/programming language by Charlie (20160907 10:41:16) 
 programming mistake; also need faster computer/programming language by Charlie (20160907 10:23:17) 
Under Nineteenth Exponent Exposition (in Just Math) Posted on 20160906 (3 Comments) 
 An analytic start and a calculator finish by Charlie (20160906 15:42:04) 
Under 1248 must be included (in Sequences) Posted on 20160906 (3 Comments) 
 Brute force (computer solution) by Charlie (20160906 10:19:42) 
Under Form Finding From Solution (in Just Math) Posted on 20160905 (2 Comments) 
 seems to be a solution by Charlie (20160905 12:35:06) 
Under Getting 189 (in Numbers) Posted on 20160905 (1 Comments) 
 solution by Charlie (20160905 10:05:38) 
Under Tetra Anagram Trial (in Word Problems) Posted on 20160902 (4 Comments) 
 Computer exploration and a guess by Charlie (20160902 09:42:55) 
Under Empty or fool ?? (in Logic) Posted on 20160901 (1 Comments) 
 solution by Charlie (20160901 12:57:44) 
Under Divisibility Property (in Numbers) Posted on 20160831 (2 Comments) 
 With software by Charlie (20160831 11:12:32) 
Under Near Fermat Nuance (in Just Math) Posted on 20160830 (2 Comments) 
 computer solution by Charlie (20160830 15:03:22) 
Under Add missing letters (in Word Problems) Posted on 20160830 (3 Comments) 
 re: answer by Charlie (20160831 07:43:17) 
Under Random Chess Pieces Poser (in Probability) Posted on 20160829 (6 Comments) 
 re(3): computer aided solution (corrected answer) by Charlie (20160830 21:30:02) 
 re(3): computer aided solution by Charlie (20160830 19:58:28) 
 re(2): computer aided solution by Charlie (20160830 07:45:29) 
 computer aided solution by Charlie (20160829 16:31:03) 
Under Which is greater? (in Just Math) Posted on 20160828 (3 Comments) 
 computer solution (spoiler) by Charlie (20160828 10:29:43) 
Under All rational numbers in (in Sequences) Posted on 20160826 (10 Comments) 
 re(2): From N/D to n @ jer & Charlie by Charlie (20160829 07:27:49) 
 re: From N/D to n by Charlie (20160828 22:27:57) 
Under Powers of 3 (in Numbers) Posted on 20160825 (5 Comments) 
 Computer exploration by Charlie (20160825 14:11:11) 
Under Labeling Minimum (in Weights and Scales) Posted on 20160825 (4 Comments) 
 re(2): Solution by Charlie (20160825 14:08:39) 
Under Eight Points (in Probability) Posted on 20160824 (3 Comments) 
 Just for curiosity, random points in a square by Charlie (20160825 09:34:10) 
 simulation by Charlie (20160824 18:30:39) 
Under Business is business (in Word Problems) Posted on 20160824 (6 Comments) 
 re: Hint for previous solvers. by Charlie (20160824 10:53:52) 
 A short couplet by Charlie (20160824 08:32:10) 
Under Murder Muse Resolution (in Riddles) Posted on 20160823 (1 Comments) 
 solution by Charlie (20160823 12:37:08) 
Under Year from Ratio (in General) Posted on 20160822 (3 Comments) 
 re: No Subject by Charlie (20160823 19:52:39) 
Under Estimate a percentage (in Numbers) Posted on 20160822 (6 Comments) 
 potential solution by Charlie (20160822 10:03:49) 
Under Covering a Cube with Strips (in Shapes) Posted on 20160818 (3 Comments) 
 solution by Charlie (20160818 17:03:06) 
Under Guessing your birthdate (in Just Math) Posted on 20160818 (4 Comments) 
 re: part a by Charlie (20160819 22:20:11) 
 part b is easiest with a computer; part a not so much by Charlie (20160818 11:05:32) 
Under Summing up (in Sequences) Posted on 20160817 (2 Comments) 
 solution by Charlie (20160817 14:33:35) 
Under 4 groups of 4 (in Word Problems) Posted on 20160816 (8 Comments) 
 re(2): with computer assistance by Charlie (20160816 19:25:11) 
 with computer assistance by Charlie (20160816 13:48:36) 
 first thoughts by Charlie (20160816 13:05:33) 
Under 240 divisors (in Just Math) Posted on 20160815 (1 Comments) 
 Analytic guesses plus computer verification (spoiler) by Charlie (20160815 10:27:39) 
Under 1234 Square (in Geometry) Posted on 20160812 (3 Comments) 
 solutions by Charlie (20160812 10:38:54) 
Under Form 21 n Times II (in Numbers) Posted on 20160811 (5 Comments) 
 re: Full solution  SPOILER by Charlie (20160811 09:06:28) 
Under Find additional pairs (in Just Math) Posted on 20160808 (5 Comments) 
 re: computer solution by Charlie (20160808 22:19:57) 
 computer solution by Charlie (20160808 22:12:14) 
Under Binomial GCDs (in Just Math) Posted on 20160808 (2 Comments) 
 Heuristic solution by Charlie (20160808 14:34:12) 
Under Visiting Toronto (in Numbers) Posted on 20160805 (1 Comments) 
 computer solution by Charlie (20160810 07:56:26) 
Under Remainder Resolution from Multiple (in Just Math) Posted on 20160804 (5 Comments) 
 computer solution by Charlie (20160804 10:43:25) 
Under Pandigital Multiples of 99 (in Numbers) Posted on 20160803 (2 Comments) 
 solution by Charlie (20160803 14:19:15) 
Under Quadratic and Linear (in Just Math) Posted on 20160803 (2 Comments) 
 computer solution by Charlie (20160803 10:32:48) 
Under Pentagon and Acute Probability (in Probability) Posted on 20160802 (1 Comments) 
 solution by Charlie (20160802 11:54:27) 
Under Staggering Digits (in Just Math) Posted on 20160728 (4 Comments) 
 re: Solution by Charlie (20160728 15:20:11) 
 needed a computer by Charlie (20160728 15:12:04) 
Under A surprising prime gap (in Numbers) Posted on 20160727 (8 Comments) 
 re(5): My solution by Charlie (20160801 07:57:10) 
 re(3): My solution by Charlie (20160731 18:45:10) 
 re: My solution by Charlie (20160730 09:13:56) 
 computer solution by Charlie (20160727 16:45:07) 
Under A chain of command (in Just Math) Posted on 20160726 (2 Comments) 
 solution if there's no trick by Charlie (20160726 13:35:10) 
Under Go back or double (in Sequences) Posted on 20160725 (5 Comments) 
 re: An uncertain shorthand for part II by Charlie (20160726 15:04:35) 
 part 1 by Charlie (20160725 10:17:43) 
Under Seventh Term Settlement (in Sequences) Posted on 20160722 (10 Comments) 
 re: answer by Charlie (20160722 10:39:59) 
 computer solution by Charlie (20160722 10:34:02) 
Under Cute numbers (in Numbers) Posted on 20160721 (5 Comments) 
 re(2): short review.....augmented by Charlie (20160722 07:45:36) 
 computer solution (spoiler) by Charlie (20160721 10:36:42) 
Under Smallest Multiple of 99 (in Just Math) Posted on 20160719 (3 Comments) 
 Seems to be by Charlie (20160719 14:51:57) 
Under Two items to get sqrt of 2 (in Science) Posted on 20160719 (5 Comments) 
 another way by Charlie (20160719 10:42:59) 
Under The First Repeat (in Probability) Posted on 20160718 (5 Comments) 
 re: answers by Charlie (20160718 15:13:55) 
 solution by Charlie (20160718 15:04:40) 
Under Denver is not the issue (in Word Problems) Posted on 20160718 (5 Comments) 
 re(2): Strong clues from A.A.Euler. (spoiler) by Charlie (20160719 08:01:57) 
 Strong clues from A.A.Euler. by Charlie (20160718 11:33:10) 
Under Cube Count Calculation (in Shapes) Posted on 20160713 (1 Comments) 
 solution by Charlie (20160713 12:55:10) 
Under Two Digit Diameter Trial (in Shapes) Posted on 20160711 (2 Comments) 
 computer solution (spoiler) by Charlie (20160711 15:31:47) 
Under Multiple Harshad Numbers (in Numbers) Posted on 20160710 (12 Comments) 
 re(3): Moby Dick has been captured  part 2 solved by Charlie (20160714 15:10:48) 
 re(2): Moby Dick has been captured  part 2 solved by Charlie (20160714 15:04:28) 
 re: phase 24 output continued by Charlie (20160714 11:19:39) 
 phase 24 output by Charlie (20160714 11:18:15) 
 Moby Dick has been captured  part 2 solved by Charlie (20160714 11:08:43) 
 re: The method for part 2 by Charlie (20160710 21:13:38) 
 re(2): part one by Charlie (20160710 15:00:45) 
 The method for part 2 by Charlie (20160710 14:27:26) 
 re: part one by Charlie (20160710 13:06:36) 
 part one by Charlie (20160710 12:43:17) 
Under Amicable pair generator (in Numbers) Posted on 20160708 (1 Comments) 
 Computer exploration by Charlie (20160708 15:33:47) 
Under Disk Toss on a Grid (in Probability) Posted on 20160708 (4 Comments) 
 re: Three answers (spoiler) by Charlie (20160708 20:46:20) 
 solution by Charlie (20160708 11:17:15) 
Under Two out of seven (in Numbers) Posted on 20160707 (2 Comments) 
 computer solution (spoiler) by Charlie (20160707 15:29:29) 
Under Not too high, not too low (in Just Math) Posted on 20160706 (3 Comments) 
 my solution by Charlie (20160706 14:52:48) 
Under Find Counterexamples (in Numbers) Posted on 20160706 (1 Comments) 
 computer solution to part 1 by Charlie (20160706 10:12:59) 
Under Sequence starting with 30 (in Numbers) Posted on 20160705 (3 Comments) 
 program; research; program by Charlie (20160705 14:43:03) 
Under Quadrilateral Area Query 2 (in Shapes) Posted on 20160703 (3 Comments) 
 another approach by Charlie (20160703 09:40:53) 
Under Pentagonal triple triangles (in Geometry) Posted on 20160701 (4 Comments) 
 re: computer method (the part that wouldn't fit) by Charlie (20160701 10:14:21) 
 computer method by Charlie (20160701 10:13:19) 
Under 4 numbers make 5 squares (in Numbers) Posted on 20160630 (10 Comments) 
 re(2): Row of text ok?  solutions found by Charlie (20160701 14:09:05) 
 re: Row of text ok? by Charlie (20160701 13:55:57) 
 re(2): A (bad?) guess by Charlie (20160701 11:02:44) 
 re: A (bad?) guess by Charlie (20160701 10:55:04) 
 re(2): computer solution and discussion by Charlie (20160630 22:36:30) 
 computer solution and discussion by Charlie (20160630 11:20:00) 
Under Square Temperatures (in Just Math) Posted on 20160629 (2 Comments) 
 Assuming... by Charlie (20160629 16:27:56) 
Under Simple number trick (in Numbers) Posted on 20160629 (5 Comments) 
 comment by Charlie (20160629 10:13:15) 
Under Pandigital pattern (in Numbers) Posted on 20160628 (2 Comments) 
 Computer exploration by Charlie (20160628 10:16:49) 
Under Skip to 4th power (in Numbers) Posted on 20160627 (4 Comments) 
 convincing but not a proof by Charlie (20160627 19:57:01) 
Under Square Sum in Pairs (in Just Math) Posted on 20160627 (2 Comments) 
 computer solution by Charlie (20160627 13:57:18) 
Under Sum Number and Reversal (in Just Math) Posted on 20160624 (5 Comments) 
 computer assisted by Charlie (20160624 14:03:57) 
Under Find From Four 2 (in Just Math) Posted on 20160623 (4 Comments) 
 computer solution by Charlie (20160623 17:02:39) 
Under Capital City Conclusion 2 (in Word Problems) Posted on 20160623 (4 Comments) 
 Excluded because of nonsovereignty by Charlie (20160623 10:21:18) 
Under 2016 and Perfect Square Puzzle (in Just Math) Posted on 20160622 (4 Comments) 
 computer solution by Charlie (20160622 16:15:15) 
Under Celsius A Fahrenheit Multiple? (in Just Math) Posted on 20160621 (7 Comments) 
 re: And another.. by Charlie (20160622 12:42:25) 
 five solutions by Charlie (20160622 08:16:39) 
 re: No Subject  looks like I solved the problem wrong way around by Charlie (20160622 07:54:31) 
 No Subject by Charlie (20160621 15:23:03) 
Under Three vowels (in Word Problems) Posted on 20160621 (4 Comments) 
 A lot of computer work... by Charlie (20160621 10:32:32) 
Under Find the killer (in Liars and Knights) Posted on 20160620 (5 Comments) 
 solution by Charlie (20160620 18:46:16) 
Under Circle cuts (in Shapes) Posted on 20160620 (1 Comments) 
 Squaring the circle... by Charlie (20160620 10:47:16) 
Under Hexadecimal Hinder (in Probability) Posted on 20160619 (6 Comments) 
 re: part (i) solution  correction by Charlie (20160620 21:56:20) 
 part (iv) solution by Charlie (20160620 10:37:02) 
 part (iii) solution by Charlie (20160620 09:01:51) 
 Simulations for all parts by Charlie (20160619 21:25:11) 
 part (ii) solution by Charlie (20160619 18:44:57) 
 part (i) solution by Charlie (20160619 15:07:44) 
Under Roman Numeral and Letter Insertion (in Word Problems) Posted on 20160617 (2 Comments) 
 computer findings by Charlie (20160617 14:27:27) 
Under Digit Finding with Hexadecimal Fibonacci (in Just Math) Posted on 20160616 (1 Comments) 
 computer solution by Charlie (20160616 15:09:16) 
Under A transpogram (in Word Problems) Posted on 20160616 (1 Comments) 
 solution by Charlie (20160616 09:53:34) 
Under Progressive probability (in Probability) Posted on 20160615 (1 Comments) 
 computer exploration  solution for first part only by Charlie (20160615 15:57:28) 
Under Comparing two events (in Probability) Posted on 20160615 (3 Comments) 
 re: solution by Charlie (20160616 09:47:20) 
 spoiler  try it yourself first by Charlie (20160616 09:43:00) 
Under Objective: Integer! (in Geometry) Posted on 20160614 (4 Comments) 
 re: Interesting by Charlie (20160615 07:44:09) 
 computer solution by Charlie (20160614 15:43:05) 
Under Arithmetic Product Puzzle 2 (in Sequences) Posted on 20160614 (2 Comments) 
 computer solution by Charlie (20160614 09:55:53) 
Under Hundred Product Hinder (in Just Math) Posted on 20160613 (2 Comments) 
 computer solution (seems unique) by Charlie (20160613 15:15:33) 
Under Squared halves (in Numbers) Posted on 20160610 (1 Comments) 
 computer solution (spoiler) by Charlie (20160610 15:02:02) 
Under Term Finding with Floor (in Sequences) Posted on 20160609 (3 Comments) 
 computer solution (spoiler) by Charlie (20160609 10:31:50) 
Under Matching pegs (in Probability) Posted on 20160608 (2 Comments) 
 stepbystep diffusion and coalescence of the probabilities by Charlie (20160608 13:27:03) 
 computer assisted solution by Charlie (20160608 13:19:16) 
Under Twice 2 products (in Numbers) Posted on 20160607 (2 Comments) 
 re: Exhausted Spoiler  doubling the answers by Charlie (20160607 13:35:34) 
Under One of these things is not like the others.. (in Word Problems) Posted on 20160607 (5 Comments) 
 re: No Subject by Charlie (20160607 13:37:41) 
Under Random Sum Resolution (in Probability) Posted on 20160606 (1 Comments) 
 solution by Charlie (20160606 10:51:52) 
Under Three expressions  same value (in Just Math) Posted on 20160602 (3 Comments) 
 computer assisted solution by Charlie (20160602 15:25:05) 
Under No fours on my odometer (in Just Math) Posted on 20160602 (2 Comments) 
 re: Possible solution. by Charlie (20160602 09:09:32) 
Under King on the run (in Just Math) Posted on 20160601 (5 Comments) 
 computer assisted solution by Charlie (20160601 15:37:46) 
Under Edge problem (in Geometry) Posted on 20160531 (3 Comments) 
 solution after a false assumption by Charlie (20160531 16:07:57) 
Under Latin verse (in Word Problems) Posted on 20160531 (5 Comments) 
 re: Very ancient latin by Charlie (20160531 16:12:36) 
Under List the expressionist numbers (in Numbers) Posted on 20160530 (10 Comments) 
 Part 1 down to 67 entries after eliminating the spurious by Charlie (20160602 07:31:32) 
 Part 1 redone allowing unary negation by Charlie (20160601 08:04:18) 
 Supplement to part 1 list by Charlie (20160531 08:40:44) 
 re: Computer solutions by Charlie (20160531 07:39:57) 
 Part 2 and Bonus by Charlie (20160531 07:31:18) 
 Computer "solution" part 1  no guarantee of completeness by Charlie (20160531 07:27:45) 
Under Finding the fixes (in Numbers) Posted on 20160529 (4 Comments) 
 re: computer solution and discussion by Charlie (20160529 11:37:40) 
 re: Stop me before I replace again! by Charlie (20160529 11:27:58) 
 computer solution and discussion by Charlie (20160529 11:22:38) 
Under Power of 2 (in Numbers) Posted on 20160527 (6 Comments) 
 computer solution by Charlie (20160527 15:12:52) 
Under Mark's itinerary (in Probability) Posted on 20160526 (5 Comments) 
 re: An by Charlie (20160529 14:06:54) 
 Analytic + Simulation + Probabilistic by Charlie (20160526 14:22:24) 
Under 2016 and Simultaneous Settlement (in Just Math) Posted on 20160526 (2 Comments) 
 computer solution (spoiler) by Charlie (20160526 10:55:52) 
Under Duodecimal Element Sum Settlement (in Just Math) Posted on 20160525 (3 Comments) 
 working in decimal, same answer by Charlie (20160525 14:22:58) 
Under Colored Candy Choice (in Probability) Posted on 20160525 (10 Comments) 
 re(3): Second part by Charlie (20160526 15:13:50) 
 re: Second part by Charlie (20160525 21:05:17) 
 re(2): No Subject @ Charlie by Charlie (20160525 20:24:18) 
 No Subject by Charlie (20160525 11:37:33) 
Under Wanted: gifted numbers (in Numbers) Posted on 20160524 (1 Comments) 
 computer assisted solution by Charlie (20160524 16:06:42) 
Under Projection Ponder (in Shapes) Posted on 20160523 (2 Comments) 
 solution (if I got the algebra right) by Charlie (20160523 15:29:15) 
Under Gambler's policy (in Probability) Posted on 20160520 (2 Comments) 
 computer assisted solution by Charlie (20160520 17:48:05) 
Under Four Digit Combination Conclusion (in Sequences) Posted on 20160518 (1 Comments) 
 solution by Charlie (20160518 19:43:55) 
Under Grid exercise (in Just Math) Posted on 20160518 (2 Comments) 
 2step method by Charlie (20160518 19:49:08) 
Under A square problem (in Just Math) Posted on 20160517 (1 Comments) 
 solution by Charlie (20160517 12:45:44) 
Under AABBCCDD and Perfect Square (in Just Math) Posted on 20160516 (3 Comments) 
 computer solutions by Charlie (20160516 16:23:10) 
Under Two distinct questions (in Just Math) Posted on 20160513 (1 Comments) 
 solution by Charlie (20160513 14:46:05) 
Under From challenge to change (in Word Problems) Posted on 20160512 (4 Comments) 
 70% of them by Charlie (20160512 14:19:12) 
Under Divisible by 198 (in Just Math) Posted on 20160512 (2 Comments) 
 computer solution by Charlie (20160512 10:05:07) 
Under Icosahedron addressed (in Geometry) Posted on 20160511 (2 Comments) 
 The area and a start toward the volume by Charlie (20160511 14:41:18) 
Under Sum ArcTan Limit (in Calculus) Posted on 20160511 (6 Comments) 
 re(3): summing the series via computer by Charlie (20160511 14:55:30) 
 re(2): summing the series via computer by Charlie (20160511 14:45:20) 
 summing the series via computer by Charlie (20160511 10:19:23) 
Under Tanya's puzzle (in Logic) Posted on 20160510 (10 Comments) 
 re(4): could be by Charlie (20160511 07:32:24) 
 could be by Charlie (20160510 14:00:22) 
Under Make it true (in Numbers) Posted on 20160509 (5 Comments) 
 via computer by Charlie (20160509 15:45:58) 
 Quick solution by Charlie (20160509 13:44:23) 
Under Puzzle Calendar (in General) Posted on 20160509 (5 Comments) 
 re(2): Solution  solution is posted by Charlie (20160510 08:29:46) 
Under First Term Finding (in Sequences) Posted on 20160504 (2 Comments) 
 computer solution by Charlie (20160504 13:13:53) 
Under LCM and GCD Equation (in Just Math) Posted on 20160503 (2 Comments) 
 computer solution by Charlie (20160503 19:05:37) 
Under Base Baffle (in Just Math) Posted on 20160502 (2 Comments) 
 solution by Charlie (20160502 14:35:06) 
Under Quadratic and Perfect Square Query (in Just Math) Posted on 20160430 (2 Comments) 
 computer exploration  probable spoiler by Charlie (20160430 09:05:23) 
Under LCM and GCD Sequence (in Sequences) Posted on 20160429 (1 Comments) 
 probable solution (spoiler) by Charlie (20160429 11:30:46) 
Under One and only (in Numbers) Posted on 20160428 (4 Comments) 
 re: spoiler by Charlie (20160428 10:39:05) 
 computer assisted solution by Charlie (20160428 10:34:13) 
Under M.G.'s wit (in Just Math) Posted on 20160427 (3 Comments) 
 Dimensional Analysis by Charlie (20160427 14:29:43) 
Under Think it over (in Logic) Posted on 20160427 (6 Comments) 
 Solution to the distractor by Charlie (20160427 10:35:42) 
Under No Carry Nuance (in Just Math) Posted on 20160426 (3 Comments) 
 Part 1 by Charlie (20160426 13:56:38) 
Under 2 diagonal sums (in Just Math) Posted on 20160426 (1 Comments) 
 solution by Charlie (20160426 10:09:11) 
Under Draw a Line to Partition the Grid (in General) Posted on 20160425 (7 Comments) 
 re(3): Strange by Charlie (20160429 12:52:15) 
 re: Strange by Charlie (20160429 07:55:06) 
 re: Solution? by Charlie (20160426 11:42:47) 
Under Cubic Diophantine Conclusion (in Just Math) Posted on 20160422 (9 Comments) 
 computer exploration by Charlie (20160422 11:11:58) 
Under Eight Digit Product Poser (in Just Math) Posted on 20160420 (1 Comments) 
 with a little help from a Mintoris Basic program (Android) by Charlie (20160420 13:46:12) 
Under Could you please repeat that? (in Probability) Posted on 20160420 (4 Comments) 
 re(2): Laying out the possibilities by Charlie (20160420 14:53:16) 
 Laying out the possibilities by Charlie (20160420 10:36:25) 
Under Asteroid walk (in General) Posted on 20160419 (8 Comments) 
 question by Charlie (20160419 22:46:24) 
Under No Equal Weighings (in Weights and Scales) Posted on 20160418 (4 Comments) 
 re: computer solution  sampling of every 1000th valid sequence by Charlie (20160418 15:10:27) 
 computer solution by Charlie (20160418 14:55:28) 
Under An educated guess (in Probability) Posted on 20160418 (7 Comments) 
 a new simulation by Charlie (20160418 14:44:30) 
 preliminary simulation by Charlie (20160418 09:01:29) 
 Preliminary guess by Charlie (20160418 08:44:45) 
Under Mean Integer Illation (in Just Math) Posted on 20160417 (1 Comments) 
 computer solution by Charlie (20160417 15:30:22) 
Under Electrical Cube 3 (in Science) Posted on 20160415 (1 Comments) 
 solution by Charlie (20160415 19:29:21) 
Under Rectangular Crease Resolution (in Shapes) Posted on 20160415 (2 Comments) 
 GSP says (7 significant figures) by Charlie (20160415 09:52:15) 
Under Three ways  same sum (in Numbers) Posted on 20160414 (3 Comments) 
 computer solution by Charlie (20160414 09:42:14) 
Under Complex Ratio and Number Resolution (in Sequences) Posted on 20160413 (2 Comments) 
 computer assisted solution by Charlie (20160413 14:37:15) 
Under 1 to 9 concatenation (in Numbers) Posted on 20160412 (7 Comments) 
 computer solution by Charlie (20160412 14:58:24) 
Under 2 equal sums (in Just Math) Posted on 20160411 (3 Comments) 
 re: computer exploration  possible spoiler by Charlie (20160411 22:44:38) 
 computer exploration  possible spoiler by Charlie (20160411 15:49:43) 
Under Extreme Palindrome Exercise (in Just Math) Posted on 20160411 (3 Comments) 
 agree by Charlie (20160411 10:16:10) 
Under A Pythagorean triangle (in Numbers) Posted on 20160408 (4 Comments) 
 computer solution by Charlie (20160408 19:21:59) 
Under Square Settlement With Digits (in Just Math) Posted on 20160407 (2 Comments) 
 computer solution by Charlie (20160407 15:40:15) 
Under Tenacious Divisibility Treat (in Just Math) Posted on 20160406 (9 Comments) 
 broll's interpretation is correct by Charlie (20160407 10:41:07) 
 solution by Charlie (20160406 10:14:35) 
Under Year Yearn 3 (in Just Math) Posted on 20160405 (1 Comments) 
 computer solution by Charlie (20160405 10:22:40) 
Under Odd and Even 3 (in Just Math) Posted on 20160404 (6 Comments) 
 re(3): My answers (with and without leading zeros) by Charlie (20160405 22:28:01) 
 re: My answers (with and without leading zeros) by Charlie (20160405 13:33:52) 
 computer solution by Charlie (20160404 19:14:42) 
Under Find this number (in Numbers) Posted on 20160404 (1 Comments) 
 computer solution by Charlie (20160404 11:21:07) 
Under Look for 3 sevens (in Numbers) Posted on 20160401 (2 Comments) 
 computer finds overlooked values by Charlie (20160401 10:48:18) 
Under 4 partitions, same product (in Numbers) Posted on 20160331 (1 Comments) 
 computer solution and discussion by Charlie (20160331 10:32:29) 
Under Fibs and Mods. (in Numbers) Posted on 20160330 (1 Comments) 
 no proof here, just some verification, and a new fact by Charlie (20160330 11:28:53) 
Under Quartering a Square (in Shapes) Posted on 20160329 (4 Comments) 
 re(2): computer solution by Charlie (20160330 08:18:22) 
 re: computer solution by Charlie (20160329 16:08:03) 
 computer solution by Charlie (20160329 15:45:59) 
Under Tatami Tiling (in Shapes) Posted on 20160329 (2 Comments) 
 solution by Charlie (20160329 10:27:33) 
Under Electrical Cube 2 (in Science) Posted on 20160325 (1 Comments) 
 solution by Charlie (20160325 10:22:17) 
Under Sum from Arithmetic and Geometric (in Sequences) Posted on 20160324 (5 Comments) 
 computer solution by Charlie (20160324 15:32:13) 
 re(2): Possible Solution by Charlie (20160324 15:27:09) 
Under Double Reflection (in Geometry) Posted on 20160324 (2 Comments) 
 solution by Charlie (20160324 10:23:45) 
Under Minimizing n (in Numbers) Posted on 20160323 (2 Comments) 
 computer confirmation (solution) by Charlie (20160323 13:34:40) 
Under Neighbors or not? (in Probability) Posted on 20160322 (3 Comments) 
 solution by Charlie (20160322 13:21:52) 
Under Rational Value Validation (in Just Math) Posted on 20160320 (11 Comments) 
 re: solution for 4 elements only by Charlie (20160323 14:52:58) 
 solution for 4 elements only by Charlie (20160322 08:12:50) 
 re(3): cardinality of solution set by Charlie (20160321 17:02:49) 
 re: cardinality of solution set by Charlie (20160321 10:14:55) 
 cardinality of solution set by Charlie (20160321 08:00:01) 
 re(2): Two special results by Charlie (20160320 22:49:12) 
 Two special results by Charlie (20160320 10:26:59) 
 a sampling of 500 at random by Charlie (20160320 10:14:35) 
Under 2 coins (in Probability) Posted on 20160318 (2 Comments) 
 Bayes by Charlie (20160318 11:10:23) 
Under Never 0 mod 3 (in Probability) Posted on 20160317 (7 Comments) 
 re(4): Solution by Charlie (20160317 23:21:55) 
 re(3): Solution by Charlie (20160317 22:33:33) 
 re(2): Solution by Charlie (20160317 21:34:14) 
 re: Solution by Charlie (20160317 14:47:17) 
 Values for the first 5 k by Charlie (20160317 14:39:24) 
Under Find number and base (in Numbers) Posted on 20160317 (6 Comments) 
 solution by Charlie (20160317 10:41:11) 
Under Set Me Up Again (in Numbers) Posted on 20160316 (1 Comments) 
 computer solution by Charlie (20160316 16:10:34) 
Under Minimal cardinality (in Numbers) Posted on 20160316 (3 Comments) 
 proposed solution by Charlie (20160316 09:48:15) 
Under Today is Monday & a PIday (in Numbers) Posted on 20160314 (13 Comments) 
 re(2): My best @ jer and CH by Charlie (20160315 09:00:50) 
 some lower numerator/denominator pairs by Charlie (20160314 14:17:52) 
 computergenerated solving aid by Charlie (20160314 09:05:33) 
Under Only one below 5000 (in Numbers) Posted on 20160311 (4 Comments) 
 computer solution by Charlie (20160311 15:28:34) 
Under Ring of triangles II (in Geometry) Posted on 20160310 (2 Comments) 
 re: computer solution  revised by Charlie (20160310 10:09:56) 
 computer solution by Charlie (20160310 09:43:35) 
Under More bouncing (in Geometry) Posted on 20160309 (3 Comments) 
 re(2): proposed solution by Charlie (20160310 07:32:51) 
 proposed solution by Charlie (20160309 14:28:48) 
Under 8th Term from Term Product (in Sequences) Posted on 20160307 (4 Comments) 
 computer solution by Charlie (20160307 13:43:58) 
Under d1 or more ? (in Numbers) Posted on 20160307 (4 Comments) 
 thoughts by Charlie (20160307 09:49:56) 
Under Matryoshka Nesting Primes (in Numbers) Posted on 20160303 (11 Comments) 
 re(3): computer solution NEEDS FILTERING by Charlie (20160303 20:09:20) 
 re(2): computer solution NEEDS FILTERING by Charlie (20160303 20:05:25) 
 re(7): computer solution  the program by Charlie (20160303 15:29:17) 
 re(6): computer solution (continued) by Charlie (20160303 15:28:22) 
 re(5): computer solution (continued) by Charlie (20160303 15:27:27) 
 re(4): computer solution (continued) by Charlie (20160303 15:26:32) 
 re(3): computer solution (continued) by Charlie (20160303 15:24:53) 
 re(2): computer solution (continued) by Charlie (20160303 15:23:04) 
 re: computer solution (continued) by Charlie (20160303 15:22:06) 
 computer solution by Charlie (20160303 15:20:13) 
Under Cheese Cut Calculation (in Just Math) Posted on 20160303 (1 Comments) 
 computer solution by Charlie (20160303 11:31:38) 
Under Ring of triangles I (in Geometry) Posted on 20160302 (2 Comments) 
 computer solution  spoiler by Charlie (20160302 15:41:57) 
Under Arithmetic Roots (in Just Math) Posted on 20160302 (2 Comments) 
 solution with computer assist by Charlie (20160302 10:32:09) 
Under Light Beam Reflection (in Shapes) Posted on 20160301 (1 Comments) 
 solution by Charlie (20160301 15:22:28) 
Under 13 and 2 (in Numbers) Posted on 20160301 (6 Comments) 
 re: answer by Charlie (20160301 09:20:29) 
 computer still finds no solution by Charlie (20160301 09:17:38) 
Under On Track (in Just Math) Posted on 20160229 (7 Comments) 
 re: Misread the problem by Charlie (20160301 07:27:05) 
 re: Circular logic (spoiler) by Charlie (20160229 21:49:52) 
Under Miles to Kilometers (in General) Posted on 20160226 (3 Comments) 
 re: quick Excel solution by Charlie (20160226 10:07:44) 
 computer solution by Charlie (20160226 10:03:15) 
Under Initial Term Illation (in Sequences) Posted on 20160225 (2 Comments) 
 computer solution by Charlie (20160225 16:03:19) 
Under A NonReintersecting Tangent (in Calculus) Posted on 20160224 (1 Comments) 
 solution by Charlie (20160224 15:09:22) 
Under My four numbers (in Just Math) Posted on 20160224 (12 Comments) 
 re(2): solution  spoiler by Charlie (20160225 07:56:24) 
 solution  spoiler by Charlie (20160224 12:18:06) 
Under In a bar (in Probability) Posted on 20160223 (6 Comments) 
 re: Last Call by Charlie (20160224 10:22:27) 
 solution, with caveat by Charlie (20160223 14:03:10) 
Under Cheese Cut Conclusion (in Shapes) Posted on 20160223 (2 Comments) 
 it would seem... (spoiler) by Charlie (20160223 11:20:35) 
Under Geometric and Three Power Travail (in Sequences) Posted on 20160222 (2 Comments) 
 computer assisted solution by Charlie (20160222 12:17:23) 
Under Counting Ten Segment Paths (in General) Posted on 20160219 (6 Comments) 
 The basic set (rotations and reflections eliminated) by Charlie (20160219 20:48:00) 
 Missed a few beforenow added; As well as I can classify them by Charlie (20160219 14:59:11) 
 re(2): As many as I found by Charlie (20160219 14:37:35) 
 re: As many as I found by Charlie (20160219 14:09:29) 
 computer solution by Charlie (20160219 13:29:41) 
Under 25 * 1 (in Just Math) Posted on 20160218 (3 Comments) 
 re(2): solution  what about these?  back to the computer by Charlie (20160218 13:50:04) 
 solution by Charlie (20160218 10:55:02) 
Under Equal products and sums (in Just Math) Posted on 20160217 (4 Comments) 
 re: computer solution  a specific subset and the program by Charlie (20160217 20:19:11) 
 computer solution by Charlie (20160217 20:16:44) 
Under 123 Remainder Resolution (in Logic) Posted on 20160216 (12 Comments) 
 computer solution by Charlie (20160216 11:59:08) 
Under Big difference (in Numbers) Posted on 20160214 (4 Comments) 
 re(3): computer solutions by Charlie (20160214 20:05:51) 
 computer solutions by Charlie (20160214 15:03:30) 
Under Optimal Order (in Sequences) Posted on 20160210 (5 Comments) 
 re: This should work by Charlie (20160214 11:33:18) 
Under How high the moon tonight (in Numbers) Posted on 20160210 (1 Comments) 
 computer solution by Charlie (20160210 12:36:36) 
Under Consecutive Numbers and Subset Choice (in Just Math) Posted on 20160209 (6 Comments) 
 found the error in method 2 by Charlie (20160209 16:29:47) 
 on the other hand by Charlie (20160209 16:15:26) 
 2 computer solutions; the second is probably right by Charlie (20160209 16:06:19) 
Under Pumpkins 7 (in Just Math) Posted on 20160205 (2 Comments) 
 computer solution by Charlie (20160205 15:41:05) 
Under Evaluate further probabilities (in Probability) Posted on 20160203 (1 Comments) 
 computeraided solution by Charlie (20160203 11:18:01) 
Under Dascal triangle (in Numbers) Posted on 20160202 (8 Comments) 
 re(6): computer solution by Charlie (20160204 11:25:27) 
 re(5): computer solution by Charlie (20160204 10:46:56) 
 re(3): computer solution by Charlie (20160203 22:16:06) 
 re(2): computer solution by Charlie (20160203 22:02:24) 
 computer solution by Charlie (20160202 15:37:44) 
Under Find From First and Last (in Just Math) Posted on 20160202 (1 Comments) 
 computer solution by Charlie (20160202 11:27:00) 
Under Mille and Remainder Resolution (in Sequences) Posted on 20160201 (3 Comments) 
 spoiler solution; can it clue toward the intended method? by Charlie (20160202 07:56:22) 
Under N Nine Nuance (in Just Math) Posted on 20160129 (6 Comments) 
 re: possible solution by Charlie (20160129 11:11:04) 
 computer solution by Charlie (20160129 10:47:03) 
Under Erase the right 90 (in Numbers) Posted on 20160128 (5 Comments) 
 re: Sequence? by Charlie (20160129 11:33:30) 
 proof on the internet (spoiler) by Charlie (20160128 15:16:54) 
Under Last term zero (in Sequences) Posted on 20160128 (3 Comments) 
 re: Spoiler by Charlie (20160128 10:22:55) 
Under 5 cubes (in Numbers) Posted on 20160126 (1 Comments) 
 computer solution by Charlie (20160126 15:29:18) 
Under Evaluate probabilities (in Probability) Posted on 20160126 (3 Comments) 
 simple understanding, and randomization procedures by Charlie (20160126 11:37:16) 
Under Floor Function Query (in Just Math) Posted on 20160125 (1 Comments) 
 computer solution by Charlie (20160125 11:16:57) 
Under Pumpkins 6 (in Numbers) Posted on 20160122 (11 Comments) 
 re(3): Analytical solution (Bonus puzzle question) by Charlie (20160127 12:13:38) 
 computer solution by Charlie (20160122 15:26:29) 
Under Hypotenuse from Cone (in Shapes) Posted on 20160122 (2 Comments) 
 same solution numerically by Charlie (20160122 10:42:20) 
Under Binary Palindrome and Near Magic Square (in Just Math) Posted on 20160121 (1 Comments) 
 computer solution by Charlie (20160121 15:48:43) 
Under Find the next two numbers (in Sequences) Posted on 20160121 (4 Comments) 
 re: As Jer by Charlie (20160122 10:46:37) 
Under Detect my chosen coin (in Games) Posted on 20160119 (19 Comments) 
 re(3): Suggested wording for solution. by Charlie (20160204 11:09:09) 
 Suggested wording for solution. by Charlie (20160203 22:53:36) 
 re: The egg of Colubus by Charlie (20160126 13:24:59) 
Under 9 coins prob (in Weights and Scales) Posted on 20160118 (6 Comments) 
 re: Two preplanned weighings by Charlie (20160119 07:56:20) 
 Outline of a sample solution by Charlie (20160118 15:50:43) 
Under 6 coins (in Weights and Scales) Posted on 20160113 (10 Comments) 
 re(2): short solution  spoiler by Charlie (20160114 19:59:00) 
 re: short solution  spoiler by Charlie (20160113 19:29:50) 
 computer solution by Charlie (20160113 14:32:07) 
 computer attempt by Charlie (20160113 13:42:02) 
 re: Solution by Charlie (20160113 12:40:10) 
Under Expose ambiguity (in Logic) Posted on 20160113 (5 Comments) 
 one possible set by Charlie (20160113 09:11:38) 
Under Sine in a Circle (in Shapes) Posted on 20160111 (1 Comments) 
 solution by Charlie (20160111 15:13:50) 
Under Primevens and primeodds (in Numbers) Posted on 20160110 (8 Comments) 
 re(4): some stats extended by Charlie (20160111 22:06:41) 
 re(3): some stats extended by Charlie (20160111 07:39:15) 
 re: some stats extended by Charlie (20160110 17:56:21) 
 some stats by Charlie (20160110 14:12:52) 
Under Lost in the woods (in Just Math) Posted on 20160108 (12 Comments) 
 proposed solution by Charlie (20160108 15:43:08) 
Under Pumpkins 5 (in Weights and Scales) Posted on 20160106 (2 Comments) 
 computer solution by Charlie (20160106 11:25:21) 
Under Test #9 (in Word Problems) Posted on 20160105 (3 Comments) 
 from my word list by Charlie (20160105 11:30:24) 
Under Twenty deposits (in Just Math) Posted on 20160104 (4 Comments) 
 solution by Charlie (20160104 15:33:04) 
Under One out of Five (in Weights and Scales) Posted on 20160104 (2 Comments) 
 My solution is way too convoluted by Charlie (20160104 10:54:12) 
Under Arithmetic Triplet Ascertainment (in Just Math) Posted on 20160103 (1 Comments) 
 Heuristic solution by Charlie (20160103 10:57:44) 
Under Peaceful superqueens (in General) Posted on 20151231 (2 Comments) 
 computer solutions by Charlie (20151231 15:16:31) 
Under Infinite Illation Decision (in Just Math) Posted on 20151231 (3 Comments) 
 It seems... by Charlie (20151231 10:18:36) 
Under Monotonous integers (in Numbers) Posted on 20151230 (9 Comments) 
 solution, starting out with analytic by Charlie (20151230 13:51:37) 
Under A five letter word (in Word Problems) Posted on 20151228 (6 Comments) 
 computer solution by Charlie (20151228 21:04:38) 
Under From pie to numbers (in Numbers) Posted on 20151227 (14 Comments) 
 re: solutions for most numbers by Charlie (20151228 08:07:34) 
 re: one more by Charlie (20151227 15:57:44) 
 computer solution by Charlie (20151227 13:40:30) 
Under Binary Palindrome Square Magic (in Just Math) Posted on 20151224 (11 Comments) 
 re: Magic Squares by Charlie (20151226 07:50:24) 
 re: No Subject by Charlie (20151225 08:11:02) 
Under Ten cities (in Cryptography) Posted on 20151224 (1 Comments) 
 computer solution by Charlie (20151224 10:48:08) 
Under Power and Digit Poser (in Just Math) Posted on 20151223 (2 Comments) 
 solution by Charlie (20151223 11:01:08) 
Under Pentagon and Reflection Poser (in Shapes) Posted on 20151222 (1 Comments) 
 Graphing calculator solution by Charlie (20151222 15:10:33) 
Under 52=1 (in Word Problems) Posted on 20151221 (5 Comments) 
 computer solution by Charlie (20151221 10:29:33) 
Under 80 (in Numbers) Posted on 20151219 (3 Comments) 
 computer solutions for all but 2359 by Charlie (20151219 13:15:36) 
Under Some sequences! (in Sequences) Posted on 20151218 (1 Comments) 
 computer solution by Charlie (20151218 11:00:18) 
Under Distinct Triangle Determination (in Shapes) Posted on 20151216 (3 Comments) 
 re(2): computer solution (Spoiler) by Charlie (20151217 11:38:36) 
 computer solution by Charlie (20151216 15:13:21) 
Under Protecting the fleet Parts C. & D. (in Geometry) Posted on 20151215 (2 Comments) 
 solution by Charlie (20151215 18:58:34) 
Under A peculiar pandigital (in Numbers) Posted on 20151214 (2 Comments) 
 All of them by Charlie (20151214 19:06:38) 
Under Protecting the fleet Parts A. & B. (in Geometry) Posted on 20151214 (4 Comments) 
 re(2): solutions by Charlie (20151215 10:57:18) 
 solutions by Charlie (20151214 15:04:04) 
Under Four Digit and Two Digit Treat (in Just Math) Posted on 20151213 (1 Comments) 
 computer solution by Charlie (20151213 18:21:48) 
Under Using a standard deck (in Numbers) Posted on 20151211 (2 Comments) 
 re: Solution by Charlie (20151212 08:09:11) 
Under A peculiar triangular number (in Numbers) Posted on 20151210 (2 Comments) 
 computer solution (spoiler) by Charlie (20151210 18:00:00) 
Under Triple Letter Occurrence, Twice! (in Word Problems) Posted on 20151210 (3 Comments) 
 computer solution 6, 7 and 8letter words by Charlie (20151210 09:13:26) 
Under Two Light Coins (in Weights and Scales) Posted on 20151209 (1 Comments) 
 solution by Charlie (20151209 19:44:31) 
Under Hold your horses (in General) Posted on 20151209 (3 Comments) 
 solution by Charlie (20151209 13:07:08) 
Under A special shortlist (in Numbers) Posted on 20151208 (3 Comments) 
 solution with computergenerated list by Charlie (20151208 10:45:22) 
Under Fibonaccish ratio (in Sequences) Posted on 20151207 (3 Comments) 
 re(2): solution by Charlie (20151207 19:54:13) 
 solution by Charlie (20151207 18:01:58) 
Under Cos Case Concern (in Shapes) Posted on 20151206 (4 Comments) 
 re: Two solutions by Charlie (20151206 15:08:11) 
Under List of pairs (in Just Math) Posted on 20151204 (2 Comments) 
 computer solution  first eight pairs by Charlie (20151204 11:27:37) 
Under A Math Problem (in Just Math) Posted on 20151203 (6 Comments) 
 computer solution of a way that works by Charlie (20151203 15:28:25) 
Under Get the right product (in Just Math) Posted on 20151201 (5 Comments) 
 Possible for 9 by Charlie (20151202 11:11:35) 
 computer verification it doesn't work for n=9 by Charlie (20151202 10:52:59) 
Under Daylight Saving (in Cryptography) Posted on 20151201 (4 Comments) 
 re: Wrong Answer (spoiler) by Charlie (20151201 11:20:44) 
Under Increasing sequences (in Just Math) Posted on 20151130 (3 Comments) 
 computer solution by Charlie (20151130 14:48:11) 
Under Table's peculiarity (in Just Math) Posted on 20151129 (6 Comments) 
 re(3): Example needed by Charlie (20151130 19:09:30) 
 re: Example needed by Charlie (20151130 08:24:58) 
Under 123 Square Settlement (in Just Math) Posted on 20151127 (3 Comments) 
 re(2): computer solution  smallest nine values by Charlie (20151128 08:58:06) 
 computer solution  smallest nine values by Charlie (20151127 15:30:18) 
Under Root factorial (in Numbers) Posted on 20151125 (1 Comments) 
 thoughts by Charlie (20151125 15:01:26) 
Under Square in a notched square (in Geometry) Posted on 20151125 (3 Comments) 
 A method of calculationneeds simplification. by Charlie (20151125 10:22:26) 
Under Biggest and smallest (in Just Math) Posted on 20151124 (2 Comments) 
 computer solution by Charlie (20151124 10:34:15) 
Under Summing Consecutive Terms and Pair Determination (in Sequences) Posted on 20151121 (3 Comments) 
 computer solution by Charlie (20151121 13:11:45) 
Under Generalizing II (in Sequences) Posted on 20151120 (2 Comments) 
 a way to calculate by Charlie (20151120 14:45:19) 
Under Counting correctly (in Numbers) Posted on 20151119 (3 Comments) 
 re(2): analytic solution, subject to error by Charlie (20151119 13:31:43) 
 analytic solution, subject to error by Charlie (20151119 11:13:05) 
Under If you go (in Numbers) Posted on 20151118 (2 Comments) 
 computer solution by Charlie (20151118 16:12:10) 
Under Upgrading procedure (in Just Math) Posted on 20151117 (1 Comments) 
 computer solution by Charlie (20151117 18:57:42) 
Under A nontrivial progression (in Numbers) Posted on 20151117 (7 Comments) 
 re(2): answers revisited by Charlie (20151118 11:23:18) 
 d2 answers by Charlie (20151117 10:37:59) 
Under Cryptajoke XII (in Cryptography) Posted on 20151116 (2 Comments) 
 solution (spoiler) by Charlie (20151116 12:31:12) 
Under 9letter word II (in Sequences) Posted on 20151113 (1 Comments) 
 computer aided solution by Charlie (20151113 15:49:41) 
Under 6 or less liars (in Liars and Knights) Posted on 20151113 (16 Comments) 
 re(3): Summing up  spoiler by Charlie (20151117 10:57:38) 
 re(4): solution by Charlie (20151115 18:39:50) 
 solution by Charlie (20151113 10:50:54) 
Under 3c+2v (in Word Problems) Posted on 20151112 (3 Comments) 
 computer solution by Charlie (20151112 13:23:55) 
Under Two sisters (in Famous Riddles) Posted on 20151112 (2 Comments) 
 re: Possible solution by Charlie (20151112 10:47:27) 
Under Sphere Intersections (in Geometry) Posted on 20151111 (4 Comments) 
 My thinking on it. by Charlie (20151111 15:28:50) 
Under Count the palindromes (in Just Math) Posted on 20151111 (7 Comments) 
 computer solution by Charlie (20151111 10:27:25) 
Under Wise saw (in General) Posted on 20151110 (3 Comments) 
 re: 2/3 solution (spoiler) by Charlie (20151110 14:04:57) 
Under Tiling and counting (in Numbers) Posted on 20151110 (2 Comments) 
 He's back by Charlie (20151110 10:49:22) 
Under â€¦.to skin a cat (in Logic) Posted on 20151109 (5 Comments) 
 re(3): The one that seems obvious by Charlie (20151109 21:54:27) 
 The one that seems obvious by Charlie (20151109 12:38:10) 
Under Cryptajoke XI (in Cryptography) Posted on 20151109 (1 Comments) 
 spoilers by Charlie (20151109 10:32:52) 
Under Cons and vows (in Word Problems) Posted on 20151106 (6 Comments) 
 #3 by Charlie (20151109 07:55:24) 
Under Four factors (in Just Math) Posted on 20151106 (2 Comments) 
 by induction, not rigorous by Charlie (20151106 09:56:37) 
Under Matching pairs II (in Word Problems) Posted on 20151105 (3 Comments) 
 re(2): most paired up, except the redundant ones by Charlie (20151106 07:46:30) 
 most paired up by Charlie (20151105 15:42:36) 
Under An interesting matrix (in Sequences) Posted on 20151105 (3 Comments) 
 re(2): solution  calculations by computer by Charlie (20151105 19:21:30) 
 solution  calculations by computer by Charlie (20151105 10:06:29) 
Under 10 4 7 10 (in Just Math) Posted on 20151103 (2 Comments) 
 computer solutions by Charlie (20151103 14:31:07) 
Under Two and only two (in Just Math) Posted on 20151103 (4 Comments) 
 re: a quick look by Charlie (20151103 14:58:18) 
 a quick look by Charlie (20151103 08:50:28) 
Under Seven numbers for seven words (in Cryptography) Posted on 20151102 (1 Comments) 
 computer assisted solution by Charlie (20151102 14:48:09) 
Under Diophantine Linear and Quadratic (in Just Math) Posted on 20151101 (4 Comments) 
 computer solution by Charlie (20151101 13:26:19) 
 re: Analytical solution (spoiler) by Charlie (20151101 13:04:04) 
Under Incredible, but solvable (in Just Math) Posted on 20151030 (11 Comments) 
 re: @ Charlie an explanation and a question by Charlie (20151031 21:23:38) 
 re(5): comp. aided solution  HINT by Charlie (20151031 08:07:16) 
 re(4): comp. aided solution  HINT by Charlie (20151031 07:59:05) 
 re(2): computer aided solution  continued by Charlie (20151030 15:28:09) 
 re: computer aided solution  continued by Charlie (20151030 15:26:16) 
 computer aided solution by Charlie (20151030 15:23:50) 
Under A plural of a plural (in Word Problems) Posted on 20151030 (5 Comments) 
 What moderns do with Latin by Charlie (20151030 10:25:35) 
Under Term Sum Settlement (in Sequences) Posted on 20151029 (3 Comments) 
 Well, it could have been solved manually, but... by Charlie (20151029 14:31:45) 
Under No peace (in Word Problems) Posted on 20151029 (4 Comments) 
 re: Some clarifications by Charlie (20151030 10:29:09) 
 Most, but not all by Charlie (20151029 09:49:17) 
Under Some questions of abundance (in Just Math) Posted on 20151028 (3 Comments) 
 re(2): proposed solution / counterexample by Charlie (20151028 13:06:43) 
 proposed solution by Charlie (20151028 10:38:43) 
Under Real Number Resolution 2 (in Just Math) Posted on 20151027 (1 Comments) 
 proposed solution by Charlie (20151027 16:00:01) 
Under Numbered Letters IV (in Word Problems) Posted on 20151026 (2 Comments) 
 computer solution by Charlie (20151026 15:37:59) 
Under Magic matrix (in Just Math) Posted on 20151026 (1 Comments) 
 computer solution by Charlie (20151026 10:55:37) 
Under Sum Equality and Perfect Square (in Just Math) Posted on 20151025 (2 Comments) 
 computer solution by Charlie (20151025 14:44:58) 
Under Must differ by 3 (in Just Math) Posted on 20151023 (3 Comments) 
 computer proof by Charlie (20151023 13:03:39) 
Under Extend the list (in Word Problems) Posted on 20151022 (2 Comments) 
 some more by Charlie (20151022 21:46:42) 
Under More ones (in Just Math) Posted on 20151021 (1 Comments) 
 computer solution by Charlie (20151021 15:27:42) 
Under Distinct Values Determination (in Just Math) Posted on 20151020 (4 Comments) 
 the missing values by Charlie (20151020 11:44:21) 
 computer solution differs by Charlie (20151020 11:25:46) 
Under Factorials & factorions (in Numbers) Posted on 20151019 (2 Comments) 
 computer solution by Charlie (20151019 14:42:49) 
Under Will you find it? (in Cryptography) Posted on 20151019 (2 Comments) 
 It, or them? by Charlie (20151019 14:39:45) 
Under Generalizing (in Geometry) Posted on 20151016 (2 Comments) 
 just offhand... by Charlie (20151016 22:28:38) 
Under Palindromes and Divisibility (in Just Math) Posted on 20151016 (3 Comments) 
 re: analytic solution by Charlie (20151016 14:16:53) 
 computer solution by Charlie (20151016 10:50:58) 
Under Oblong Difference Observation (in Just Math) Posted on 20151015 (3 Comments) 
 two more solutions (computer solutions) by Charlie (20151015 13:58:20) 
Under Same digits  3 cubes (in Numbers) Posted on 20151014 (1 Comments) 
 computer solution by Charlie (20151014 10:45:14) 
Under Triangular and Square Settlement (in Just Math) Posted on 20151013 (7 Comments) 
 extended list by Charlie (20151014 08:09:55) 
 computer solution by Charlie (20151013 15:34:15) 
Under Integer Count Illation (in Just Math) Posted on 20151012 (1 Comments) 
 solution by Charlie (20151012 15:29:02) 
Under Count them correctly (in Numbers) Posted on 20151012 (2 Comments) 
 same answer by Charlie (20151012 10:42:20) 
Under Permutations count redux (in Numbers) Posted on 20151009 (1 Comments) 
 first simpler consideration by Charlie (20151012 13:46:19) 
Under Integer Function Finding (in Just Math) Posted on 20151009 (1 Comments) 
 computer guided guess by Charlie (20151009 11:22:43) 
Under sum of digits and 100th term (in Sequences) Posted on 20151008 (3 Comments) 
 I did miss something in the previous post. by Charlie (20151009 08:27:51) 
 I've probably miscounted but here goes. by Charlie (20151008 21:24:23) 
Under 8 digit rhyme (in Cryptography) Posted on 20151008 (1 Comments) 
 solution (spoiler) by Charlie (20151008 10:44:23) 
Under Non zero product (in Just Math) Posted on 20151007 (1 Comments) 
 computer assisted calculation by Charlie (20151007 20:02:02) 
Under Digit sum and digit product equality (in Just Math) Posted on 20151006 (2 Comments) 
 computer aided solution by Charlie (20151006 20:28:06) 
Under Random Choice (in Probability) Posted on 20151002 (1 Comments) 
 solution by Charlie (20151002 10:25:48) 
Under Permutations count (in Numbers) Posted on 20151001 (10 Comments) 
 I guess simplicity is in the mind of the user by Charlie (20151002 09:57:08) 
 solution by Charlie (20151001 16:02:09) 
Under Phrase find ponder (in Word Problems) Posted on 20151001 (6 Comments) 
 re(2): first undoubtedly incorrect thoughts by Charlie (20151001 16:11:55) 
Under Extreme Sum Settlement (in Just Math) Posted on 20150928 (4 Comments) 
 re: Solution (barring errors) by Charlie (20150928 16:02:04) 
 the computer doesn't tire of writing the numbers by Charlie (20150928 15:56:47) 
Under Cryptajoke IX (in Cryptography) Posted on 20150928 (2 Comments) 
 way by Charlie (20150928 10:31:35) 
Under 9letter word (in Numbers) Posted on 20150925 (6 Comments) 
 re(2): computer solutions by Charlie (20150926 07:35:38) 
 computer solutions by Charlie (20150925 16:15:56) 
Under Quit as a winner (in Games) Posted on 20150924 (8 Comments) 
 re(2): some research (spoiler) by Charlie (20150924 18:35:16) 
 some research (spoiler) by Charlie (20150924 16:26:17) 
 further fine tuning by Charlie (20150924 15:47:31) 
 re: computer exploration by Charlie (20150924 15:38:36) 
 computer exploration by Charlie (20150924 15:05:47) 
Under Cheryl's bday (in Logic) Posted on 20150924 (2 Comments) 
 solution by Charlie (20150924 10:16:36) 
Under Three brothers (in Just Math) Posted on 20150923 (1 Comments) 
 solution by Charlie (20150923 11:25:20) 
Under Less Than 2015 (in Just Math) Posted on 20150922 (3 Comments) 
 re(2): computer solution  trying to explain it by Charlie (20150923 15:56:46) 
 computer solution by Charlie (20150922 17:23:10) 
Under Hexakosioihexekontahexaphobia (in General) Posted on 20150922 (3 Comments) 
 It seems... by Charlie (20150922 10:02:04) 
Under Rook Placement (in Games) Posted on 20150921 (5 Comments) 
 re: Detailed solution (SPOILER) by Charlie (20150926 07:51:35) 
Under Three Power and Product Divisibility (in Just Math) Posted on 20150919 (2 Comments) 
 re: computer exploration by Charlie (20150920 18:58:36) 
 computer exploration by Charlie (20150920 07:56:20) 
Under Expression Product Exercise (in Just Math) Posted on 20150918 (5 Comments) 
 even UBASIC can get only to 8 in direct calculation by Charlie (20150920 08:23:36) 
 computer exploration  far from a proof by Charlie (20150918 12:37:49) 
Under 2 easy cryptajokes (VIII) (in Cryptography) Posted on 20150918 (3 Comments) 
 caught the thief  not the fish by Charlie (20150918 09:21:00) 
Under Some definite results (in Numbers) Posted on 20150917 (5 Comments) 
 re: nonanalytic solution by Charlie (20150918 08:27:49) 
Under Marissa's and Melissa's birthdays (in Logic) Posted on 20150917 (1 Comments) 
 solution with some computer assistance by Charlie (20150917 12:20:00) 
Under Check divisibility (in Numbers) Posted on 20150916 (5 Comments) 
 re(2): computer exploration (probable spoiler) by Charlie (20150917 07:47:38) 
 computer exploration (probable spoiler) by Charlie (20150916 16:13:12) 
Under Coordinating arrival (in Just Math) Posted on 20150915 (2 Comments) 
 solution by Charlie (20150915 10:57:22) 
Under C reverses into F (in Numbers) Posted on 20150914 (10 Comments) 
 re(2): computer exploration ....... att ALL by Charlie (20150915 07:51:08) 
 re: A valiant attempt by Charlie (20150914 20:30:42) 
 computer exploration by Charlie (20150914 16:19:42) 
Under Square Sum and Square Multiple (in Just Math) Posted on 20150913 (2 Comments) 
 An extended list  Using Visual Basic by Charlie (20150913 14:54:43) 
Under Prime Ratio Possibility (in Just Math) Posted on 20150911 (3 Comments) 
 solution by Charlie (20150911 11:04:22) 
Under Fair? (in Games) Posted on 20150910 (10 Comments) 
 re: A's strategy by Charlie (20150917 19:29:03) 
 re: Solution by Charlie (20150914 07:50:09) 
 re(2): solution by Charlie (20150911 07:40:14) 
 solution by Charlie (20150910 17:16:31) 
Under Oneliners (in General) Posted on 20150909 (4 Comments) 
 oh, yes; forgot this by Charlie (20150909 20:01:53) 
 mostly computer solution by Charlie (20150909 15:49:58) 
Under Threesyllable word (in Tricks) Posted on 20150907 (3 Comments) 
 probably... by Charlie (20150907 12:38:11) 
Under Quadratic and Quartic Query (in Just Math) Posted on 20150906 (3 Comments) 
 computer solution  the 33 lowest. by Charlie (20150906 14:13:34) 
Under Simultaneous Pythagorean Poser 2 (in Just Math) Posted on 20150905 (4 Comments) 
 corrected computer solution by Charlie (20150906 08:46:20) 
 computer solution by Charlie (20150905 12:48:30) 
Under Six countries (in General) Posted on 20150904 (8 Comments) 
 re: Alternate solution by Charlie (20150904 18:22:38) 
 re(3): If only! (more of a spoiler) by Charlie (20150904 15:32:13) 
 re: If only! (more of a spoiler) by Charlie (20150904 10:56:00) 
Under Not Variety, but... (in Word Problems) Posted on 20150903 (4 Comments) 
 re(2): Sorry, wrong answers (spoiler) by Charlie (20150904 07:28:20) 
Under Digit Product Puzzle (in Probability) Posted on 20150903 (3 Comments) 
 re(2): analytic solution  corrected by Charlie (20150903 16:32:01) 
 analytic solution by Charlie (20150903 11:06:44) 
Under Arithmetic and Power Puzzle (in Just Math) Posted on 20150902 (2 Comments) 
 computer exploration by Charlie (20150902 15:08:39) 
Under Surprising answer (in Probability) Posted on 20150902 (6 Comments) 
 solution by Charlie (20150902 11:45:16) 
Under Muchos idiomas (in Word Problems) Posted on 20150901 (1 Comments) 
 computer solution by Charlie (20150901 16:09:14) 
Under Convex Hexagon and Ratio Product (in Shapes) Posted on 20150901 (3 Comments) 
 re(2): metasolution by Charlie (20150901 15:56:20) 
 metasolution by Charlie (20150901 09:59:46) 
Under Cryptajoke VII (in Word Problems) Posted on 20150831 (2 Comments) 
 solution (spoiler) by Charlie (20150831 15:46:48) 
Under Homophone Hunt 2 (in Word Problems) Posted on 20150831 (3 Comments) 
 another by Charlie (20150831 09:57:39) 
Under A Fibo quadruplet (in Numbers) Posted on 20150828 (1 Comments) 
 solution by Charlie (20150828 11:05:46) 
Under What am I ? (in Riddles) Posted on 20150827 (1 Comments) 
 You are... by Charlie (20150827 09:49:41) 
Under Divide et impera part two (in Numbers) Posted on 20150826 (2 Comments) 
 Much data but no proofcomputer exploration by Charlie (20150826 12:58:28) 
Under Only 2 answers (in Numbers) Posted on 20150826 (3 Comments) 
 re(2): computer solution by Charlie (20150826 14:30:25) 
 computer solution by Charlie (20150826 11:17:03) 
Under Hockey pucks (in Logic) Posted on 20150825 (1 Comments) 
 solution by Charlie (20150825 14:31:58) 
Under Year and Perfect Square Puzzle (in Just Math) Posted on 20150822 (2 Comments) 
 computer solution by Charlie (20150822 15:55:34) 
Under Numbers in pi (in Numbers) Posted on 20150821 (3 Comments) 
 computer solution by Charlie (20150821 10:34:23) 
Under Three coins (in Probability) Posted on 20150820 (10 Comments) 
 re(6): question by Charlie (20150823 15:08:46) 
 re(4): question by Charlie (20150822 07:40:37) 
 re(2): question by Charlie (20150820 15:34:30) 
 question by Charlie (20150820 13:48:19) 
Under Visit USA (in General) Posted on 20150820 (9 Comments) 
 If the goal is... by Charlie (20150820 10:42:57) 
 re: solution by Charlie (20150820 10:39:14) 
Under A selfworking card trick (in Tricks) Posted on 20150819 (1 Comments) 
 solution by Charlie (20150819 15:17:04) 
Under This or that? (in Probability) Posted on 20150819 (4 Comments) 
 My take on it by Charlie (20150819 10:03:55) 
Under Divide et impera (in Numbers) Posted on 20150818 (2 Comments) 
 three computer solutions by Charlie (20150818 12:02:45) 
Under Perfect Square Digit (in Just Math) Posted on 20150817 (2 Comments) 
 Can't find any under 10 billion by Charlie (20150818 08:01:58) 
Under Ez & true (in Riddles) Posted on 20150817 (1 Comments) 
 The saying by Charlie (20150818 07:54:46) 
Under Nonperfect Cube Root Sum (in Just Math) Posted on 20150814 (6 Comments) 
 re: An idea by Charlie (20150814 13:28:01) 
Under Rooting for 2015 (in Just Math) Posted on 20150814 (3 Comments) 
 confirmed solution by Charlie (20150814 10:22:22) 
Under Arithmetic Product Puzzle (in Sequences) Posted on 20150813 (1 Comments) 
 computer solution by Charlie (20150813 14:52:35) 
Under Eight efficient blacksmiths (in Just Math) Posted on 20150813 (4 Comments) 
 re: solution by Charlie (20150813 09:31:05) 
 solution by Charlie (20150813 09:26:03) 
Under Power and Divisibility Puzzle (in Just Math) Posted on 20150812 (6 Comments) 
 computer solution by Charlie (20150812 15:50:13) 
Under Simpler probability problem? (in Probability) Posted on 20150811 (14 Comments) 
 re(2): I think I'm beginning to understand what Ady's saying by Charlie (20150813 09:20:42) 
 I think I'm beginning to understand what Ady's saying by Charlie (20150812 19:36:15) 
 re(4): solution by Charlie (20150812 14:46:30) 
 simulation of 100 trials by Charlie (20150812 12:27:43) 
 re(4): solution by Charlie (20150812 12:08:07) 
 re: re. difficulty level by Charlie (20150812 08:57:18) 
 re(2): solution by Charlie (20150812 08:42:24) 
 solution by Charlie (20150811 15:56:22) 
Under Positive Integer and Power Puzzle (in Logic) Posted on 20150810 (1 Comments) 
 computer solution by Charlie (20150810 19:23:20) 
Under Oddday (in Numbers) Posted on 20150810 (4 Comments) 
 re: No math on vacation by Charlie (20150811 15:55:16) 
Under Clever counting (in Numbers) Posted on 20150807 (6 Comments) 
 re: Part b researched solution by Charlie (20150808 08:20:18) 
 Part b researched solution by Charlie (20150807 23:04:25) 
 re(2): part a computer solution wrong? by Charlie (20150807 22:27:09) 
 part a computer solution by Charlie (20150807 18:59:07) 
Under Largest pandigital prime. (in Numbers) Posted on 20150807 (1 Comments) 
 computer solution by Charlie (20150807 12:21:30) 
Under one 3 or one 7 puzzle (in Just Math) Posted on 20150806 (3 Comments) 
 computer solution by Charlie (20150806 13:30:07) 
Under Factorial Ratio Sum Puzzle (in Calculus) Posted on 20150804 (3 Comments) 
 computer solution: It quickly converges by Charlie (20150804 09:14:25) 
Under Odd and Even 2 (in Just Math) Posted on 20150803 (4 Comments) 
 computer solution by Charlie (20150803 10:15:05) 
 re: solution by Charlie (20150803 09:53:39) 
Under Ocean Anagram â€“ Not (in Word Problems) Posted on 20150731 (3 Comments) 
 re: a d1 solution by Charlie (20150731 09:12:36) 
Under Best guess (in Probability) Posted on 20150730 (3 Comments) 
 re(2): computer solution  a mathematicaltype formula by Charlie (20150801 08:24:47) 
 computer solution by Charlie (20150730 14:56:26) 
Under Red, White, and Blue (in Logic) Posted on 20150729 (4 Comments) 
 computer proof by Charlie (20150729 14:35:28) 
Under Perfect Power Puzzle (in Just Math) Posted on 20150729 (5 Comments) 
 re: full solution........................SPOILER by Charlie (20150729 10:16:47) 
 re: full solution........................SPOILER by Charlie (20150729 10:00:18) 
 computer solution by Charlie (20150729 09:58:22) 
Under No letters (in Cryptography) Posted on 20150727 (2 Comments) 
 I learn to initialize arrays in VB 5 by Charlie (20150727 14:20:25) 
Under Integer Triangle Side Puzzle (in Shapes) Posted on 20150726 (1 Comments) 
 computer solution by Charlie (20150726 10:56:57) 
Under Linear and Quadratic Sum Puzzle (in Just Math) Posted on 20150725 (3 Comments) 
 re: computeraided solution by Charlie (20150725 13:30:24) 
 computeraided solution by Charlie (20150725 13:22:55) 
Under Nine trolls (in Just Math) Posted on 20150723 (9 Comments) 
 re(2): computer solution by Charlie (20150723 12:22:03) 
 re: computer solution by Charlie (20150723 12:15:34) 
 computer solution by Charlie (20150723 11:57:51) 
 re: computer solution by Charlie (20150723 11:37:25) 
 only a start by Charlie (20150723 08:27:41) 
Under One of the countries (in Word Problems) Posted on 20150722 (2 Comments) 
 computer solution by Charlie (20150722 15:46:50) 
Under Yearly Division (in Just Math) Posted on 20150722 (1 Comments) 
 solution by Charlie (20150722 13:39:52) 
Under Initial Term Identification (in Sequences) Posted on 20150721 (3 Comments) 
 electronically computed by Charlie (20150721 15:08:06) 
Under Phrase Reconstruction Puzzle (in Word Problems) Posted on 20150721 (5 Comments) 
 re: What's the point? by Charlie (20150722 08:14:53) 
 answer by Charlie (20150721 11:09:44) 
Under Guessing suit (in Probability) Posted on 20150720 (13 Comments) 
 simulation by Charlie (20150721 10:25:25) 
 re: senseless task ! by Charlie (20150720 11:09:49) 
Under Picking numbers (in Probability) Posted on 20150717 (7 Comments) 
 re: Solution by Charlie (20150729 10:22:14) 
 computer solution by Charlie (20150717 15:11:20) 
 re: Analytical Solution (spoiler) by Charlie (20150717 15:08:32) 
Under Pasta wrestling (in Word Problems) Posted on 20150717 (1 Comments) 
 solution by Charlie (20150717 10:53:58) 
Under Smallest Perfect Cube Puzzle (in Just Math) Posted on 20150715 (2 Comments) 
 simulation of manual trials by Charlie (20150715 16:19:57) 
 computer assisted solution by Charlie (20150715 16:03:18) 
Under Pieces of eight (in Just Math) Posted on 20150715 (2 Comments) 
 some computer aid by Charlie (20150715 10:46:46) 
Under Powers of Ten (in Sequences) Posted on 20150714 (7 Comments) 
 re: Pwerful answer (spoiler) by Charlie (20150714 16:14:00) 
Under Bean coloring (in Probability) Posted on 20150713 (11 Comments) 
 re(3):Correcting My previous analytical solution by Charlie (20150715 21:42:51) 
 re(2):Correcting My previous analytical solution by Charlie (20150715 16:39:37) 
 Further exact values using UBASIC by Charlie (20150714 10:42:50) 
 re: computer aided solution by Charlie (20150713 19:44:27) 
 computer aided solution by Charlie (20150713 18:49:13) 
Under Beginning and End (in Just Math) Posted on 20150711 (6 Comments) 
 The Fibonacci connection by Charlie (20150712 08:52:04) 
 More precision with UBASIC computer program by Charlie (20150711 09:36:36) 
Under Long Reverse Rigor (in Word Problems) Posted on 20150710 (3 Comments) 
 words with 15 or more letters, with lengths by Charlie (20150710 19:14:53) 
Under Inverse Quadratic Sum Puzzle (in Just Math) Posted on 20150709 (1 Comments) 
 steps with some internet help by Charlie (20150709 12:56:06) 
Under Inverse Expression Exercise (in Just Math) Posted on 20150707 (1 Comments) 
 probabile solution by Charlie (20150707 16:50:57) 
Under From ab to yz (in Word Problems) Posted on 20150706 (5 Comments) 
 re: computer solution by Charlie (20150706 16:11:55) 
 computer solution by Charlie (20150706 15:57:15) 
Under Simultaneous Pythagorean Poser (in Just Math) Posted on 20150704 (4 Comments) 
 re: solution by Charlie (20150704 16:00:25) 
Under Quite a triplet (in Numbers) Posted on 20150702 (10 Comments) 
 re(4): computer solution  prolonged search by Charlie (20150704 08:06:14) 
 re(2): computer solution  prolonged search by Charlie (20150703 11:36:27) 
 re: more info by Charlie (20150703 07:56:45) 
 computer solution by Charlie (20150702 15:49:37) 
Under Chinatown's problem (in Numbers) Posted on 20150702 (3 Comments) 
 solution with some explanation by Charlie (20150702 09:19:53) 
Under One 1 to Six 6's (in Probability) Posted on 20150701 (14 Comments) 
 re: Solution for n=2 and 3, and some observations by Charlie (20150730 09:11:20) 
 re(4): computer aided solution by Charlie (20150702 15:41:55) 
 re(2): computer aided solution by Charlie (20150702 15:34:07) 
 re(3): computer aided solution by Charlie (20150702 09:39:18) 
 re(2): computer aided solution by Charlie (20150702 09:09:49) 
 computer aided solution by Charlie (20150701 17:00:33) 
Under Mathematical Term (in Word Problems) Posted on 20150701 (4 Comments) 
 answer by Charlie (20150701 10:15:27) 
Under More than linear (in Just Math) Posted on 20150630 (1 Comments) 
 computer solution by Charlie (20150630 16:19:44) 
Under How many subsets? (in Just Math) Posted on 20150629 (3 Comments) 
 computer solution by Charlie (20150629 19:43:37) 
Under Ship Anagram  Not (in Word Problems) Posted on 20150629 (4 Comments) 
 re(2): Ahoy! (spoiler) by Charlie (20150630 09:16:36) 
Under Factorial creates prime (in Numbers) Posted on 20150626 (4 Comments) 
 Would it help if ... by Charlie (20150626 11:38:46) 
Under It is not 8^5 (in Numbers) Posted on 20150624 (3 Comments) 
 re: Solution (Spoiler) by Charlie (20150624 09:48:19) 
Under Cubic and Factorial Puzzle (in Just Math) Posted on 20150623 (1 Comments) 
 computer solution by Charlie (20150623 11:39:47) 
Under Find the lowest n (in Numbers) Posted on 20150622 (4 Comments) 
 re: A few other n by Charlie (20150623 07:24:20) 
Under All possible integer determination (in Just Math) Posted on 20150620 (1 Comments) 
 computer solution by Charlie (20150620 14:44:33) 
Under 7 idiomatic phrases (in Word Problems) Posted on 20150617 (2 Comments) 
 a start by Charlie (20150617 13:55:42) 
Under One triplet out (in Numbers) Posted on 20150616 (3 Comments) 
 computer solution by Charlie (20150616 15:05:58) 
Under Expression Quotient Puzzle (in Just Math) Posted on 20150616 (3 Comments) 
 re: Some, maybe all by Charlie (20150616 12:08:54) 
Under On his way to fitness (in Just Math) Posted on 20150615 (10 Comments) 
 Using calculator app and Excel by Charlie (20150616 08:59:42) 
 re: A geometrical approach by Charlie (20150615 14:45:15) 
Under Bivariate Quadratic Puzzle (in Just Math) Posted on 20150614 (2 Comments) 
 computer exploration gives probable solution by Charlie (20150614 11:28:53) 
Under Yearly Diophantine Puzzle (in Just Math) Posted on 20150612 (1 Comments) 
 computer solution by Charlie (20150612 15:23:04) 
Under p^10 is special (in Numbers) Posted on 20150612 (1 Comments) 
 computer solution by Charlie (20150612 11:01:57) 
Under Lefties and righties (in Logic) Posted on 20150610 (2 Comments) 
 solution by Charlie (20150610 11:11:41) 
Under Cube root sum equality puzzle (in Just Math) Posted on 20150609 (2 Comments) 
 computer solution by Charlie (20150609 15:54:15) 
Under A chain of five (in Word Problems) Posted on 20150608 (2 Comments) 
 computer solution by Charlie (20150608 21:59:37) 
Under Eleven Letter Exercise (in Word Problems) Posted on 20150608 (3 Comments) 
 re(2): answer by Charlie (20150611 08:45:02) 
 re: answer by Charlie (20150608 10:20:54) 
Under Find Points, Maximise Ratio (in Shapes) Posted on 20150605 (6 Comments) 
 re(3): solution (continued) by Charlie (20150605 16:02:17) 
 re(2): solution (continued) by Charlie (20150605 16:00:52) 
 re: solution by Charlie (20150605 15:59:04) 
 computer finding by Charlie (20150605 15:51:30) 
Under 5 76993 408621 (in Numbers) Posted on 20150604 (3 Comments) 
 computer aided solution by Charlie (20150604 14:28:11) 
Under Three Quotients and Integer Puzzle (in Just Math) Posted on 20150603 (4 Comments) 
 I get (with computer program) by Charlie (20150603 15:56:14) 
Under Logical, or not? (in General) Posted on 20150601 (4 Comments) 
 solution by Charlie (20150601 12:35:04) 
Under Just vowels (in General) Posted on 20150529 (9 Comments) 
 My take on it by Charlie (20150529 15:56:40) 
Under Rational or not? (in Just Math) Posted on 20150529 (5 Comments) 
 re(2): solution by Charlie (20150531 14:09:48) 
 solution by Charlie (20150529 10:09:45) 
Under No neighbors allowed (in Numbers) Posted on 20150522 (2 Comments) 
 solution by Charlie (20150522 15:37:25) 
Under One, two, eight etc (in Numbers) Posted on 20150522 (2 Comments) 
 adding overbars for large squares by Charlie (20150522 13:05:09) 
 computer solution not considering overlining for large squares by Charlie (20150522 10:52:38) 
Under Cuboid Concern (in Shapes) Posted on 20150521 (2 Comments) 
 If I didn't make any mistakes along the way by Charlie (20150521 16:16:16) 
Under Back to throne (in Probability) Posted on 20150521 (3 Comments) 
 computer exploration and solution by Charlie (20150521 10:34:51) 
Under Three consecutive letters (in Word Problems) Posted on 20150520 (4 Comments) 
 re: Other examples by Charlie (20150521 10:49:16) 
Under 3 squares and 5 ways puzzle (in Just Math) Posted on 20150519 (1 Comments) 
 computer solution by Charlie (20150519 15:11:37) 
Under 7G vs 7B (in General) Posted on 20150518 (2 Comments) 
 No Subject by Charlie (20150518 22:14:51) 
Under A sequence or not a sequence? (in Logic) Posted on 20150518 (3 Comments) 
 In China and in Ancient Rome by Charlie (20150518 11:14:30) 
 Of course... by Charlie (20150518 09:54:09) 
Under Random numbers sum together (in Probability) Posted on 20150515 (3 Comments) 
 re(2): solution: as presented and with a complication by Charlie (20150515 13:56:06) 
 solution: as presented and with a complication by Charlie (20150515 11:01:51) 
Under Sextic Settlement (in Just Math) Posted on 20150513 (6 Comments) 
 re(2): Counterexample by Charlie (20150513 11:20:47) 
Under How far can you go? (in Numbers) Posted on 20150512 (6 Comments) 
 computer exploration by Charlie (20150512 10:26:36) 
Under Cabbageheadâ€™s neighbors (in Word Problems) Posted on 20150508 (3 Comments) 
 computer findings by Charlie (20150508 10:51:07) 
Under Rhyme time (in Word Problems) Posted on 20150507 (6 Comments) 
 a further start by Charlie (20150507 09:46:34) 
Under 4 primes (in Numbers) Posted on 20150506 (3 Comments) 
 computer solution by Charlie (20150506 15:40:46) 
Under Poor primes (in Numbers) Posted on 20150504 (1 Comments) 
 computer solution by Charlie (20150504 19:22:39) 
Under Odd men out (in Logic) Posted on 20150429 (6 Comments) 
 re: Special numbers by Charlie (20150430 11:00:43) 
 starting out by Charlie (20150429 10:20:14) 
Under Largest palindrome (in Numbers) Posted on 20150427 (4 Comments) 
 re(2): program solution by Charlie (20150428 08:11:18) 
 program solution by Charlie (20150427 19:23:24) 
Under Not solvable by computer (?) (in Word Problems) Posted on 20150424 (5 Comments) 
 computer plus human finds only one by Charlie (20150424 12:59:57) 
Under Downward Pair Reading (in Word Problems) Posted on 20150424 (4 Comments) 
 re: solution(s) by Charlie (20150424 21:21:09) 
 computer solution by Charlie (20150424 11:04:56) 
Under Consecutive Count (in Sequences) Posted on 20150423 (4 Comments) 
 revised program by Charlie (20150424 21:49:59) 
 computer solution by Charlie (20150423 15:29:35) 
Under Three's a company (in General) Posted on 20150423 (7 Comments) 
 re(2): And #11 by Charlie (20150426 08:34:23) 
 1,2,3,,,7,8,,10 by Charlie (20150423 09:20:04) 
Under Consecutive Deletion (in Just Math) Posted on 20150422 (1 Comments) 
 computer solution by Charlie (20150422 14:20:58) 
Under Geographic entities (in General) Posted on 20150420 (3 Comments) 
 re(2): computer assisted solution /bonus task by Charlie (20150421 07:45:16) 
 computer assisted solution by Charlie (20150420 15:28:27) 
Under N as a sum of factorials (in Just Math) Posted on 20150420 (1 Comments) 
 solution by Charlie (20150420 09:56:06) 
Under Some powers decomposed (in Numbers) Posted on 20150416 (5 Comments) 
 re: Thoughts from OEIS by Charlie (20150417 11:43:19) 
 computer solution: differently ordered list by Charlie (20150417 07:59:36) 
Under Number Count Conclusion (in Just Math) Posted on 20150415 (4 Comments) 
 computer solution by Charlie (20150415 16:25:15) 
Under 2^(10n) (in Numbers) Posted on 20150415 (8 Comments) 
 re(4): worked out by Charlie (20150417 14:09:41) 
 re(2): worked out by Charlie (20150416 08:06:54) 
 worked out by Charlie (20150415 09:01:19) 
Under Integer Triangle Trial (in Shapes) Posted on 20150414 (1 Comments) 
 solution by Charlie (20150414 10:42:14) 
Under Nonempty sets element count (in Just Math) Posted on 20150413 (5 Comments) 
 solution by Charlie (20150413 14:22:49) 
Under Deux Power Divisibility (in Algorithms) Posted on 20150412 (3 Comments) 
 continuation of Jer's table by Charlie (20150412 13:27:24) 
Under Long chain (in Numbers) Posted on 20150410 (7 Comments) 
 lesson learned by Charlie (20150411 08:32:42) 
 computer exploration by Charlie (20150410 20:46:20) 
Under From product to town (in Word Problems) Posted on 20150410 (2 Comments) 
 computer assisted solution by Charlie (20150410 11:07:50) 
Under Bright light (in Science) Posted on 20150409 (9 Comments) 
 re: Interesting question. by Charlie (20150410 07:35:28) 
 comparison with an actual case by Charlie (20150409 20:05:18) 
 re(2): GSP Model disagrees with the previous posts by Charlie (20150409 17:14:21) 
 re: GSP Model disagrees with the previous posts by Charlie (20150409 16:15:01) 
 what I get by Charlie (20150409 13:03:18) 
Under Some sums (in Numbers) Posted on 20150407 (3 Comments) 
 computer solution by Charlie (20150407 14:34:22) 
Under Buddy, can you spare a buck? (in Numbers) Posted on 20150403 (3 Comments) 
 Hmmm... by Charlie (20150403 10:13:26) 
Under Domain and Range (in Just Math) Posted on 20150402 (1 Comments) 
 Somewhat satisfying answer by Charlie (20150402 14:13:46) 
Under The Case of the Mixtup Calendar (in General) Posted on 20150402 (1 Comments) 
 I think.... by Charlie (20150402 10:00:39) 
Under Reflection Matrix (in Just Math) Posted on 20150401 (3 Comments) 
 completing the derivation by Charlie (20150402 08:50:32) 
 researched solution by Charlie (20150401 16:10:17) 
Under Function Function Function Function Foray (in Just Math) Posted on 20150331 (2 Comments) 
 computer solution to both parts; analytic solution for part 2 by Charlie (20150331 14:43:39) 
Under Nine times SSD (in Just Math) Posted on 20150330 (1 Comments) 
 computer solution by Charlie (20150330 22:04:20) 
Under How many solutions? (in Just Math) Posted on 20150330 (1 Comments) 
 solution by Charlie (20150330 09:12:24) 
Under Neighboring tickets (in Numbers) Posted on 20150326 (2 Comments) 
 computer solution by Charlie (20150326 15:21:20) 
Under Island Adventure (in Liars and Knights) Posted on 20150326 (1 Comments) 
 solution by Charlie (20150326 10:02:29) 
Under Zero Sum Expression (in Just Math) Posted on 20150325 (2 Comments) 
 computer exploration by Charlie (20150325 15:44:18) 
Under Win some, lose some II (in Just Math) Posted on 20150325 (1 Comments) 
 solution by Charlie (20150325 08:41:08) 
Under Long list (in Word Problems) Posted on 20150324 (2 Comments) 
 a computer list by Charlie (20150324 15:28:03) 
Under Growing fast (in Numbers) Posted on 20150323 (4 Comments) 
 re: correction ............... see before solving by Charlie (20150324 07:43:06) 
 Just a note by Charlie (20150323 15:45:30) 
Under Rectangular Rearrangement Resolution (in Shapes) Posted on 20150320 (5 Comments) 
 further by Charlie (20150320 11:00:28) 
Under 123456789 scrambled (in Numbers) Posted on 20150319 (6 Comments) 
 re(3): computer solution by Charlie (20150320 07:49:52) 
 computer solution by Charlie (20150319 15:29:27) 
Under Isosceles Crease (in Shapes) Posted on 20150319 (2 Comments) 
 solution by Charlie (20150319 11:28:48) 
Under +QU : Quite Unusual (in Word Problems) Posted on 20150317 (2 Comments) 
 list by Charlie (20150317 15:21:53) 
Under Log Inequality Illation (in Just Math) Posted on 20150317 (4 Comments) 
 re(2): solution by Charlie (20150318 07:52:22) 
 solution by Charlie (20150317 09:56:07) 
Under Pentagon Fraction Minimizing (in Just Math) Posted on 20150316 (2 Comments) 
 solution by Charlie (20150316 13:16:19) 
Under Musical Term  Not (in Word Problems) Posted on 20150316 (2 Comments) 
 re: full solution........................SPOILER by Charlie (20150316 10:06:02) 
Under Linear and Quadratic Square (in Just Math) Posted on 20150315 (4 Comments) 
 computer solution by Charlie (20150315 12:52:08) 
Under Five Cards III (in Logic) Posted on 20150313 (3 Comments) 
 computer solution by Charlie (20150313 15:42:15) 
Under Location, location, location (in Geometry) Posted on 20150312 (8 Comments) 
 re(4): To answer the question... (a GSP picture is worth a thousand words) by Charlie (20150314 08:02:57) 
 re: To answer the question... by Charlie (20150312 19:58:01) 
Under Deux Digit Deduction II (in Just Math) Posted on 20150312 (4 Comments) 
 last two digits in base 12 by Charlie (20150312 10:56:05) 
Under Root sum equals integer (in Just Math) Posted on 20150310 (7 Comments) 
 re(3): solution & playing around by Charlie (20150310 15:54:20) 
 re: solution & playing around by Charlie (20150310 14:40:30) 
 with the assistance of a computer language that can handle complex intermediate terms by Charlie (20150310 14:21:27) 
Under Unity Root Count (in Just Math) Posted on 20150309 (2 Comments) 
 re: solution  showing a sample of the ways of each product by Charlie (20150309 21:49:09) 
 solution by Charlie (20150309 17:39:29) 
Under 3 sets of primes (in Numbers) Posted on 20150308 (1 Comments) 
 computer solution by Charlie (20150308 12:53:52) 
Under Divisor Count Conclusion (in Just Math) Posted on 20150306 (2 Comments) 
 re: solution  same answer, a different way by Charlie (20150306 10:39:41) 
Under Painting high dimension cubes (in Shapes) Posted on 20150305 (4 Comments) 
 re: Thoughts by Charlie (20150314 07:52:06) 
 solution by Charlie (20150305 15:41:41) 
Under Find the last member (in Sequences) Posted on 20150305 (1 Comments) 
 computer solution by Charlie (20150305 10:48:21) 
Under Line Ratio Resolution (in Shapes) Posted on 20150304 (4 Comments) 
 re(3): Possible solution  but using Geometers Sketchpad by Charlie (20150305 11:07:20) 
 re: Possible solution  but using Geometers Sketchpad by Charlie (20150305 08:01:11) 
Under Minimizing Perimeter (in Shapes) Posted on 20150304 (15 Comments) 
 re(6): NO DICE.....not a spoiler by Charlie (20150306 19:37:44) 
 re: A triangle that works, may not be minimum (spoiler) by Charlie (20150304 10:17:17) 
 computer solution by Charlie (20150304 09:33:20) 
Under Contradict Goldbach (in Numbers) Posted on 20150303 (2 Comments) 
 computer assisted solution by Charlie (20150303 13:24:17) 
Under Phrase a question II (in Numbers) Posted on 20150303 (2 Comments) 
 re: What is... (solution) by Charlie (20150303 11:01:33) 
Under Rearranged Resolution II (in Word Problems) Posted on 20150302 (4 Comments) 
 re: computer solutions by Charlie (20150302 14:09:24) 
 computer solutions by Charlie (20150302 14:05:05) 
Under Academia, defeated, yesterday (in Word Problems) Posted on 20150226 (6 Comments) 
 re(2): computer solutions by Charlie (20150226 19:52:38) 
 computer solutions by Charlie (20150226 12:07:52) 
Under Next year vs the current year (in Numbers) Posted on 20150225 (5 Comments) 
 with some computer assistance by Charlie (20150225 10:50:12) 
Under Composite prime (in Numbers) Posted on 20150224 (2 Comments) 
 smallest and beyondcomputer exploration (spoiler) by Charlie (20150224 11:11:57) 
Under Be consistent (in Numbers) Posted on 20150220 (3 Comments) 
 first thoughts by Charlie (20150220 13:15:07) 
Under Not too much (in Numbers) Posted on 20150220 (8 Comments) 
 re(2): Is this valid? no !  partial spoiler by Charlie (20150220 15:16:45) 
Under Double a triangle (in Sequences) Posted on 20150219 (3 Comments) 
 The first few pairs by Charlie (20150219 14:07:43) 
Under Repeated Words (in Word Problems) Posted on 20150219 (4 Comments) 
 re: Could it be . . .? (spoiler added) by Charlie (20150219 10:49:46) 
Under A modified die (in Numbers) Posted on 20150218 (3 Comments) 
 computer solution by Charlie (20150218 14:07:55) 
Under The final quantity (in Numbers) Posted on 20150218 (4 Comments) 
 computer solution by Charlie (20150218 10:27:51) 
Under Approximating radicals (in Numbers) Posted on 20150217 (4 Comments) 
 discussion by Charlie (20150217 16:31:49) 
Under z is a word (in Word Problems) Posted on 20150217 (1 Comments) 
 solution by Charlie (20150217 11:18:27) 
Under Golfer Gauge (in Word Problems) Posted on 20150216 (4 Comments) 
 (ii) by Charlie (20150216 15:25:52) 
Under Phrase a question I (in Numbers) Posted on 20150216 (2 Comments) 
 computer solutions by Charlie (20150216 09:19:51) 
Under Distinct Values Derivation (in General) Posted on 20150215 (2 Comments) 
 re: computer solution  what was I thinking? by Charlie (20150218 19:43:50) 
 computer solution by Charlie (20150215 14:18:04) 
Under An ancient Egyptian problem (in Just Math) Posted on 20150213 (5 Comments) 
 computer solutions by Charlie (20150213 15:20:11) 
Under Bound the product (in Numbers) Posted on 20150213 (4 Comments) 
 Some facts that may aid in finding a proof by Charlie (20150213 10:49:00) 
Under Date Deduction II (in General) Posted on 20150212 (1 Comments) 
 solution by Charlie (20150212 15:59:49) 
Under Inequality (in Just Math) Posted on 20150211 (5 Comments) 
 re: Trigonometric solution by Charlie (20150212 08:57:31) 
 graphic solution by Charlie (20150211 10:39:34) 
Under Shared by squares (in Algorithms) Posted on 20150210 (3 Comments) 
 re: A start by Charlie (20150210 19:44:38) 
 some thoughts by Charlie (20150210 19:26:46) 
Under Total Triplet Treat (in Shapes) Posted on 20150209 (1 Comments) 
 computer solution by Charlie (20150209 14:40:57) 
Under A simple gematria (in Numbers) Posted on 20150209 (3 Comments) 
 a few proper names by Charlie (20150209 11:35:24) 
Under The LSD of Prime Numbers (in Numbers) Posted on 20150208 (1 Comments) 
 computer solution by Charlie (20150208 16:15:06) 
Under Very very colourful (in General) Posted on 20150206 (2 Comments) 
 5 through 8 by Charlie (20150206 10:19:18) 
Under Rooting for Roots (in Just Math) Posted on 20150204 (2 Comments) 
 solution by Charlie (20150204 15:25:24) 
Under Mr Mar & Mrs Bles (in Numbers) Posted on 20150204 (1 Comments) 
 solution by Charlie (20150204 11:04:05) 
Under Palindromes from Digit Sum Series (in Numbers) Posted on 20150203 (1 Comments) 
 open ended solution/discussion by Charlie (20150203 14:31:41) 
Under Happy Numbers (in Numbers) Posted on 20150202 (1 Comments) 
 computer solution by Charlie (20150202 15:29:50) 
Under Ellis Number (in Numbers) Posted on 20150131 (1 Comments) 
 computer solution by Charlie (20150131 14:53:59) 
Under Find From Floor (in Just Math) Posted on 20150130 (4 Comments) 
 solution by Charlie (20150130 14:36:09) 
Under Integer Triplets with a Difference (in Numbers) Posted on 20150130 (6 Comments) 
 computer solution by Charlie (20150130 10:31:52) 
Under A SelfTerminating Sequence (in Numbers) Posted on 20150129 (1 Comments) 
 computer solution by Charlie (20150129 14:41:58) 
Under Date Count Conclusion (in General) Posted on 20150129 (1 Comments) 
 computer solution (spoiler) by Charlie (20150129 09:50:44) 
Under Phrase Anagram Ponder (in Word Problems) Posted on 20150128 (3 Comments) 
 Used an anagram program for IV (spoiler for IV) by Charlie (20150128 13:09:49) 
 II by Charlie (20150128 12:52:18) 
Under ProSum Numbers (in Numbers) Posted on 20150128 (5 Comments) 
 looking farther  the lowest 4sequence by Charlie (20150128 15:05:54) 
 re(2): computer solution  corrected program by Charlie (20150128 13:38:55) 
 computer solution by Charlie (20150128 11:19:45) 
Under Hat #10 (in Word Problems) Posted on 20150127 (4 Comments) 
 re: some computer findings by Charlie (20150128 07:37:28) 
 some computer findings by Charlie (20150127 15:41:41) 
Under Integral Proof (in Numbers) Posted on 20150126 (3 Comments) 
 no proof, but the integer is... (spoiler) by Charlie (20150126 13:24:51) 
Under Deux Difference Deduction (in Sequences) Posted on 20150123 (8 Comments) 
 computer solution by Charlie (20150123 15:20:44) 
Under What price glory? (in Games) Posted on 20150122 (5 Comments) 
 If there isn't an even better strategy... (spoiler?) by Charlie (20150122 11:13:59) 
Under Deux Digit Deduction (in Just Math) Posted on 20150121 (2 Comments) 
 computer solution  last 6 digits of each by Charlie (20150121 12:52:16) 
Under Not hehe (in Word Problems) Posted on 20150121 (5 Comments) 
 probably not one of the two by Charlie (20150121 10:04:33) 
Under 4 clues (in Numbers) Posted on 20150119 (3 Comments) 
 computer solution by Charlie (20150119 11:47:55) 
Under Chinese New Year (in General) Posted on 20150116 (8 Comments) 
 re: computer solution by Charlie (20150119 07:48:02) 
 re(2): computer solution  the JavaScript code by Charlie (20150117 12:14:08) 
 re(2): computer solution by Charlie (20150117 08:45:48) 
 re: computer solution  the JavaScript code by Charlie (20150116 20:38:08) 
 computer solution by Charlie (20150116 20:30:14) 
 testing by Charlie (20150116 15:16:05) 
Under Squares and Rectangles II (in Just Math) Posted on 20150116 (2 Comments) 
 detail on the rectangle counts by Charlie (20150116 10:10:39) 
Under Paramount Polygon Poser (in Shapes) Posted on 20150115 (3 Comments) 
 computer assisted solution by Charlie (20150115 10:14:13) 
Under Three conditions define a triplet (in Just Math) Posted on 20150114 (2 Comments) 
 computer solution by Charlie (20150114 22:24:18) 
Under Square Sum Settlement (in Just Math) Posted on 20150114 (3 Comments) 
 computer solution (spoiler) by Charlie (20150114 10:47:33) 
Under Celsius Fahrenheit Check (in Just Math) Posted on 20150113 (1 Comments) 
 not taking up the extra challenge(spoiler) by Charlie (20150113 14:38:01) 
Under Find the remainder (in Just Math) Posted on 20150109 (3 Comments) 
 re: possible solution (spoiler)  computer confirmation by Charlie (20150109 10:45:34) 
Under Units Digit Determination (in Just Math) Posted on 20150107 (3 Comments) 
 corrected computer summation by Charlie (20150108 07:59:42) 
 Adding up those 9digit numbers by Charlie (20150107 15:12:43) 
Under Cows and buffaloes. (in Just Math) Posted on 20150107 (2 Comments) 
 computer solution by Charlie (20150107 10:30:39) 
Under More than a million, less than ten (in Just Math) Posted on 20150106 (4 Comments) 
 re(2): More than 3000, less than 8, computer solutions by Charlie (20150109 08:29:13) 
 More than 3000, less than 8, computer solutions by Charlie (20150106 09:30:05) 
Under Dates data distribution (in Just Math) Posted on 20150105 (3 Comments) 
 re(2): computeraided solution by Charlie (20150105 21:18:59) 
 computeraided solution by Charlie (20150105 15:54:59) 
Under Sum Productive Digits (in Just Math) Posted on 20141231 (2 Comments) 
 computer solutions by Charlie (20141231 12:14:30) 
Under A simple inequality (in Just Math) Posted on 20141231 (4 Comments) 
 no proofjust demonstration by Charlie (20141231 11:08:03) 
Under Binomial Baffle (in Just Math) Posted on 20141230 (2 Comments) 
 computer solution by Charlie (20141230 14:35:48) 
Under Neither is prime (in Just Math) Posted on 20141230 (2 Comments) 
 10101 by Charlie (20141230 10:55:15) 
Under Reverse Role II (in Just Math) Posted on 20141229 (2 Comments) 
 computer solution by Charlie (20141229 09:56:16) 
Under Region Area Ascertainment (in Just Math) Posted on 20141228 (4 Comments) 
 re: My region isn't reaching (spoiler) by Charlie (20141228 12:02:52) 
Under Three Digit Travail (in Probability) Posted on 20141226 (1 Comments) 
 computer solution by Charlie (20141226 14:58:12) 
Under Hexadecimal Digit Travail (in Just Math) Posted on 20141225 (5 Comments) 
 re(4): computer solution by Charlie (20141225 20:55:51) 
 re(2): computer solution by Charlie (20141225 18:30:15) 
 computer solution by Charlie (20141225 14:01:32) 
Under Pie Pieces (in Just Math) Posted on 20141224 (2 Comments) 
 solutions by 2 methods, computer aided by Charlie (20141224 14:00:42) 
Under Omega to Alpha Observation (in Just Math) Posted on 20141223 (5 Comments) 
 computer solutions by Charlie (20141223 15:09:46) 
Under Count the Liars (in Liars and Knights) Posted on 20141223 (6 Comments) 
 re: Figures don't lie, but liars do figure (spoiler) by Charlie (20141223 11:15:55) 
Under 2014 Prime Treat (in Probability) Posted on 20141222 (1 Comments) 
 computer solution and exploration by Charlie (20141222 15:52:52) 
Under LCM 540 (in Just Math) Posted on 20141222 (6 Comments) 
 re: No Subject by Charlie (20141222 12:31:37) 
Under Divisible by 28 (in Just Math) Posted on 20141221 (4 Comments) 
 computer solution by Charlie (20141221 21:08:21) 
Under Arithmetic Numbers Enumeration (in Sequences) Posted on 20141219 (2 Comments) 
 computer solution by Charlie (20141219 15:29:55) 
Under Origamic Revisited (in Shapes) Posted on 20141219 (1 Comments) 
 playing with GSP by Charlie (20141219 10:49:33) 
Under Compare sizes (in Just Math) Posted on 20141218 (3 Comments) 
 computer solution by Charlie (20141218 20:24:15) 
Under m & n (in Just Math) Posted on 20141218 (2 Comments) 
 computeraided solution by Charlie (20141218 09:53:58) 
Under Floor Fulfilment (in Just Math) Posted on 20141217 (2 Comments) 
 computer evaluation by Charlie (20141217 13:44:55) 
Under Power Sum Poser (in Just Math) Posted on 20141216 (2 Comments) 
 computer solution by Charlie (20141216 15:22:16) 
Under Cash and chit (in General) Posted on 20141215 (1 Comments) 
 computer solution by Charlie (20141215 13:47:25) 
Under Cube Difference Deduction (in Just Math) Posted on 20141212 (2 Comments) 
 computer solution by Charlie (20141212 17:48:48) 
Under Trigo inequality (in Just Math) Posted on 20141211 (11 Comments) 
 re(5): solution. Useful (it's to be hoped) table by Charlie (20141214 08:13:24) 
 re(3): solution by Charlie (20141213 13:17:10) 
 re: solution by Charlie (20141213 08:07:18) 
 re: solution by Charlie (20141212 07:45:30) 
Under Year Yearn 2 (in General) Posted on 20141211 (4 Comments) 
 between 1000 and 3000  computer solution by Charlie (20141211 08:48:22) 
Under Eight distances (in Just Math) Posted on 20141210 (4 Comments) 
 can't be sure by Charlie (20141210 10:12:45) 
Under Distinct sod (in Just Math) Posted on 20141209 (1 Comments) 
 computer solution by Charlie (20141209 11:23:28) 
Under Out of this word (in Word Problems) Posted on 20141208 (9 Comments) 
 Most of a solution by Charlie (20141208 10:26:15) 
Under Two squares in a circle (in Geometry) Posted on 20141205 (4 Comments) 
 solution by Charlie (20141205 15:20:18) 
Under Going NorthEast (in Just Math) Posted on 20141205 (4 Comments) 
 re: Another way to avoid tedium. by Charlie (20141207 10:32:56) 
 solution: computer used, to avoid tedium by Charlie (20141205 09:40:23) 
Under So close, but no closer... (in Just Math) Posted on 20141204 (5 Comments) 
 computer assisted solution by Charlie (20141204 14:21:37) 
Under Test #7 (in Word Problems) Posted on 20141203 (7 Comments) 
 computer solution by Charlie (20141203 14:01:05) 
Under Sibling Birthday Baffle (in Logic) Posted on 20141203 (1 Comments) 
 answer by Charlie (20141203 11:28:39) 
Under Floor Equation (in Just Math) Posted on 20141202 (2 Comments) 
 solution by Charlie (20141202 14:02:29) 
Under Consecutive Placement  Not (in Probability) Posted on 20141201 (1 Comments) 
 computer assisted solution by Charlie (20141201 16:23:18) 
Under What not? (in General) Posted on 20141201 (4 Comments) 
 re(2): My solution (spoiler?) by Charlie (20141202 22:06:55) 
 My solution (spoiler?) by Charlie (20141201 08:41:05) 
Under Seven Age Settlement (in Logic) Posted on 20141124 (4 Comments) 
 No Subject by Charlie (20141124 14:59:19) 
Under To a fifth of the wind, that pierces us most (in Famous Riddles) Posted on 20141121 (1 Comments) 
 Hints by Charlie (20141121 12:24:00) 
Under A symmetric relation (in Just Math) Posted on 20141119 (5 Comments) 
 re: The easy solution by Charlie (20141119 08:42:49) 
 The easy solution by Charlie (20141119 08:40:36) 
Under Real Resolution II (in Just Math) Posted on 20141118 (1 Comments) 
 solution by Charlie (20141118 14:36:03) 
Under Missions impossible (in Just Math) Posted on 20141117 (3 Comments) 
 solution by Charlie (20141117 19:16:26) 
Under Well said (in General) Posted on 20141117 (2 Comments) 
 re: Decrypting the quote (spoiler) by Charlie (20141117 12:48:13) 
Under Inconsiderable Integer Illation (in Just Math) Posted on 20141116 (10 Comments) 
 re: answer only by Charlie (20141116 14:55:12) 
 Actual answer  calculator solution by Charlie (20141116 14:50:58) 
Under An aSCending SCale (in Word Problems) Posted on 20141114 (7 Comments) 
 re(2): some examples from the computer by Charlie (20141115 07:39:18) 
 some examples from the computer by Charlie (20141114 14:21:21) 
Under Deux Digit Determination (in Just Math) Posted on 20141113 (4 Comments) 
 re: Full expansion, but unproven result by Charlie (20141113 14:29:50) 
 computer solution by Charlie (20141113 14:24:33) 
Under Survival Surmise (in Logic) Posted on 20141112 (2 Comments) 
 solution by Charlie (20141112 15:27:36) 
Under Hours of Operation (in Numbers) Posted on 20141112 (8 Comments) 
 Longest for 12hour clock: computer solution by Charlie (20141113 08:15:01) 
 re: Longest duration, 24 hour clock (spoiler) by Charlie (20141113 08:07:14) 
Under Austria or Italy ? (in Just Math) Posted on 20141111 (1 Comments) 
 computer solution by Charlie (20141111 15:44:30) 
Under Composite Sum Satisfaction (in Just Math) Posted on 20141111 (4 Comments) 
 computer solution by Charlie (20141111 10:34:13) 
Under Arrival Appraisal (in Science) Posted on 20141107 (2 Comments) 
 different solution by Charlie (20141107 20:45:06) 
Under Philately Ponder (in Logic) Posted on 20141107 (3 Comments) 
 solution by Charlie (20141107 10:11:36) 
Under Supreme Red Sox Surmise (in Probability) Posted on 20141106 (2 Comments) 
 computer solution by Charlie (20141106 11:05:58) 
Under Box Volume Baffle (in Shapes) Posted on 20141105 (5 Comments) 
 re(2): No Subject by Charlie (20141106 14:43:23) 
 No Subject by Charlie (20141106 08:19:07) 
Under RMS Rigor (in Just Math) Posted on 20141104 (4 Comments) 
 computer check of all a from 1 to a million (spoiler) by Charlie (20141104 20:32:00) 
Under Square Choice Conclusion (in Probability) Posted on 20141104 (2 Comments) 
 solution (spoiler) by Charlie (20141104 08:33:07) 
Under Win some, lose some (in Logic) Posted on 20141103 (1 Comments) 
 discussion by Charlie (20141103 15:57:12) 
Under Fridays (in Numbers) Posted on 20141103 (1 Comments) 
 computer solution by Charlie (20141103 10:54:22) 
Under Quadrilateral Quandary (in Shapes) Posted on 20141102 (1 Comments) 
 Geometers' Sketchpad approximations by Charlie (20141102 22:26:15) 
Under Chairs galore (in Just Math) Posted on 20141031 (4 Comments) 
 solution and discussion by Charlie (20141031 10:19:44) 
Under Identical Digit Baffle II (in Just Math) Posted on 20141030 (2 Comments) 
 solution and also those in the middle by Charlie (20141030 14:35:46) 
Under Reply to this (in Just Math) Posted on 20141030 (3 Comments) 
 solution by Charlie (20141030 12:06:57) 
Under Random^Random (in Probability) Posted on 20141029 (9 Comments) 
 re: table of numeric integration by Charlie (20141030 08:47:54) 
 re(2): table of numeric integration by Charlie (20141030 08:34:08) 
 table of numeric integration by Charlie (20141029 15:41:37) 
 re: towards an analytic solution  numeric integration by Charlie (20141029 15:32:44) 
 towards an analytic solution by Charlie (20141029 14:35:18) 
 numerical simulation by Charlie (20141029 13:54:25) 
Under Analyzing change (in Just Math) Posted on 20141028 (4 Comments) 
 computer solution by Charlie (20141028 12:22:14) 
Under Hat #9 (in Word Problems) Posted on 20141027 (2 Comments) 
 uncommented computer output by Charlie (20141027 19:15:56) 
Under Word Containment Contemplation (in Word Problems) Posted on 20141027 (3 Comments) 
 re: No Subject by Charlie (20141027 14:21:23) 
Under Uncommonly Common (in Riddles) Posted on 20141025 (4 Comments) 
 one possibility by Charlie (20141026 08:34:42) 
Under Performance Probe (in Logic) Posted on 20141024 (2 Comments) 
 computer solution by Charlie (20141024 19:28:50) 
Under Curious concatenations (in Numbers) Posted on 20141023 (1 Comments) 
 computer solutions by Charlie (20141023 16:07:43) 
Under Extending tictactoe (in Just Math) Posted on 20141023 (6 Comments) 
 re: General Solution by Charlie (20141023 10:25:31) 
 computer solutions by Charlie (20141023 10:21:55) 
 10min p&p based on a misinterpretation  not a solution by Charlie (20141023 09:38:17) 
Under Beaujolais Nouveau Day (in Probability) Posted on 20141022 (7 Comments) 
 computer solution by Charlie (20141022 16:12:59) 
Under One by two (in Numbers) Posted on 20141022 (6 Comments) 
 re: 19 solutions by Charlie (20141022 11:17:13) 
Under Distinct Decimal Digits (in Numbers) Posted on 20141021 (1 Comments) 
 computer solutions by Charlie (20141021 15:30:43) 
Under Farmer Giles (in Just Math) Posted on 20141021 (4 Comments) 
 re(2): solutions by Charlie (20141022 07:45:10) 
 solutions by Charlie (20141021 10:36:47) 
Under Cuisine Conclusion II (in Word Problems) Posted on 20141020 (5 Comments) 
 computeraided method by Charlie (20141020 15:49:41) 
Under Half odd, half even (in Numbers) Posted on 20141016 (3 Comments) 
 re: Answer by Charlie (20141016 15:23:55) 
 computer solution by Charlie (20141016 15:07:00) 
Under Distinct Values Validation (in Just Math) Posted on 20141016 (7 Comments) 
 re: Alternative formulation, x+y+z <= 94 by Charlie (20141016 14:59:55) 
 Alternative formulation, while it had been in the queue by Charlie (20141016 10:52:31) 
 solution by Charlie (20141016 10:39:49) 
Under Reverse Role (in Just Math) Posted on 20141015 (4 Comments) 
 re(2): More Bases (spoiler) by Charlie (20141015 14:37:39) 
Under My products (in General) Posted on 20141015 (2 Comments) 
 computer solution (spoiler) by Charlie (20141015 10:28:44) 
Under Ternary Sum Travail (in Probability) Posted on 20141014 (2 Comments) 
 computer solution by Charlie (20141014 14:55:57) 
Under Dozen Word Amalgamation (in Word Problems) Posted on 20141013 (2 Comments) 
 Learned a new word (spoiler) by Charlie (20141013 15:21:06) 
Under A versatile number (in Numbers) Posted on 20141013 (6 Comments) 
 manual solution to bonus is wrong by Charlie (20141013 14:27:46) 
 Bonus onlynot the actual puzzle. by Charlie (20141013 08:57:02) 
Under Greatest GCD (in Sequences) Posted on 20141012 (5 Comments) 
 computer exploration by Charlie (20141012 14:17:06) 
Under Cryptajoke II (in Cryptography) Posted on 20141011 (3 Comments) 
 thoughts by Charlie (20141012 10:39:32) 
Under Arithmetic and Geometric Addle (in Sequences) Posted on 20141010 (3 Comments) 
 computer solution by Charlie (20141010 14:55:13) 
Under Optimal location (in Just Math) Posted on 20141010 (2 Comments) 
 solution (spoiler) by Charlie (20141010 10:06:24) 
Under A happy trio (in Probability) Posted on 20141009 (3 Comments) 
 A better approximation by Charlie (20141009 13:48:49) 
Under Draw and go (in Probability) Posted on 20141008 (14 Comments) 
 re(3): short amendment att Charlie by Charlie (20141013 15:25:25) 
 re: short amendment by Charlie (20141011 22:32:53) 
 re(4): Solution or partial solution ... clarification by Charlie (20141010 07:56:31) 
 re(2): Solution or partial solution ... clarification by Charlie (20141009 09:56:20) 
Under Counting Crossings (in Geometry) Posted on 20141008 (7 Comments) 
 wording by Charlie (20141009 07:51:57) 
 solution by Charlie (20141008 13:12:45) 
Under Zeroless or not? (in Probability) Posted on 20141007 (1 Comments) 
 computer exploration by Charlie (20141007 10:35:23) 
Under Winning Ticket Tickle (in Probability) Posted on 20141006 (6 Comments) 
 re(2): computer aided solution by Charlie (20141006 14:28:04) 
 re: computer aided solution  whoops!; 50 is not under 46 by Charlie (20141006 14:23:44) 
 computer aided solution by Charlie (20141006 14:19:08) 
Under Inverse Power Pact (in Just Math) Posted on 20141002 (2 Comments) 
 The computer solution by Charlie (20141002 10:47:53) 
Under Why and when (in General) Posted on 20141001 (1 Comments) 
 computer aided solution by Charlie (20141001 15:51:47) 
Under Get them up (in Just Math) Posted on 20141001 (5 Comments) 
 re(2): Unsatisfying computer proof by Charlie (20141002 10:53:50) 
 Unsatisfying computer proof by Charlie (20141001 11:21:11) 
Under Consecutive Conclusion (in Just Math) Posted on 20140930 (8 Comments) 
 re(2): two computer algorithm solutions by Charlie (20141001 07:41:24) 
 two computer algorithm solutions by Charlie (20140930 18:40:42) 
Under Square Result Rumination (in Just Math) Posted on 20140928 (6 Comments) 
 other types of cases by Charlie (20140928 21:57:30) 
 Technical solutionbut a larger question remains. by Charlie (20140928 09:04:20) 
Under Simultaneous Satisfaction (in Just Math) Posted on 20140927 (2 Comments) 
 computer solution and outline of a possible analytic method by Charlie (20140927 15:17:56) 
Under Cubic Minimum (in Just Math) Posted on 20140926 (7 Comments) 
 computer solution by Charlie (20140926 13:50:49) 
 re: ANSWER by Charlie (20140926 13:47:41) 
Under Only one basic solution II (in General) Posted on 20140926 (1 Comments) 
 computer assisted solution by Charlie (20140926 10:30:55) 
Under Moving target (in Shapes) Posted on 20140925 (2 Comments) 
 solution by Charlie (20140925 19:13:59) 
Under Mary, Mary, Quite Orderly (in Just Math) Posted on 20140924 (6 Comments) 
 Part (ii) at last (?) by Charlie (20140926 14:44:57) 
 re(4): solution  second thoughts on correction by Charlie (20140925 09:53:12) 
 re(3): solution  corrected part (ii) it is hoped by Charlie (20140925 09:42:30) 
 re(2): solution by Charlie (20140925 07:48:06) 
 solution by Charlie (20140924 16:00:59) 
Under Rectangle Color Rigor (in Just Math) Posted on 20140923 (4 Comments) 
 a diagram by Charlie (20140923 12:37:28) 
Under Cinq Digit Choice (in Probability) Posted on 20140922 (1 Comments) 
 computer solution (spoiler) by Charlie (20140922 16:29:18) 
Under Max and Min (in Just Math) Posted on 20140922 (3 Comments) 
 computer solution by Charlie (20140922 12:22:25) 
Under Cuisine Conclusion (in Cryptography) Posted on 20140918 (1 Comments) 
 solution (spoiler): middle four enough to answer the question by Charlie (20140918 10:34:24) 
Under Simultaneous Base Baffle (in Just Math) Posted on 20140917 (6 Comments) 
 computer solution  the good the bad and the ugly by Charlie (20140917 15:42:06) 
 re: solution by Charlie (20140917 15:36:48) 
Under Adding to rolls (in Probability) Posted on 20140915 (1 Comments) 
 solution by Charlie (20140915 18:05:27) 
Under ndimensional spheres (in Just Math) Posted on 20140915 (2 Comments) 
 The sequence, if my trig is right by Charlie (20140915 08:26:49) 
Under Inherited Veracity II (in Liars and Knights) Posted on 20140912 (2 Comments) 
 re: computer solution by Charlie (20140914 07:47:05) 
 computer solution by Charlie (20140912 13:24:44) 
Under Roy G Biv (in Probability) Posted on 20140911 (1 Comments) 
 computer solution by Charlie (20140911 16:36:33) 
Under Digital Time (in General) Posted on 20140910 (1 Comments) 
 computer solution and analysis by Charlie (20140910 12:07:42) 
Under Rooted to the Floor II (in Just Math) Posted on 20140908 (3 Comments) 
 computer solution by Charlie (20140908 17:28:37) 
Under Identical Digit Baffle (in Just Math) Posted on 20140908 (2 Comments) 
 computer solution by Charlie (20140908 11:07:11) 
Under 2 pandigital equations (in Numbers) Posted on 20140905 (4 Comments) 
 computer solution by Charlie (20140905 18:14:59) 
Under Distinct Delivery Deduction (in Just Math) Posted on 20140904 (7 Comments) 
 a computer solution by Charlie (20140904 17:33:37) 
Under 2015 digits (in Just Math) Posted on 20140904 (2 Comments) 
 solution by Charlie (20140904 11:22:35) 
Under Sparse Sine Settlement (in Just Math) Posted on 20140903 (2 Comments) 
 computeraided solution by Charlie (20140903 18:03:11) 
Under Decimal Digits (in General) Posted on 20140902 (5 Comments) 
 thoughts on (a) by Charlie (20140902 14:10:31) 
Under World War I sword (in Riddles) Posted on 20140902 (1 Comments) 
 spoiler by Charlie (20140902 14:02:29) 
Under Cuboid Diagonal Conclusion (in Shapes) Posted on 20140901 (4 Comments) 
 re: solution by Charlie (20140901 21:54:16) 
 solution by Charlie (20140901 17:55:48) 
Under Hi there, Pascal (in Numbers) Posted on 20140901 (2 Comments) 
 computer solution by Charlie (20140901 12:36:58) 
Under Test #5 (in Word Problems) Posted on 20140831 (1 Comments) 
 computer findings by Charlie (20140831 13:13:28) 
Under Triangular Triangulation (in Just Math) Posted on 20140830 (4 Comments) 
 They do seem to keep on coming  no proof either way by Charlie (20140830 14:46:28) 
Under Playing With Marbles II (in Probability) Posted on 20140829 (2 Comments) 
 simulation verification by Charlie (20140829 12:16:17) 
 solution by Charlie (20140829 11:39:58) 
Under Segment Section Settlement (in Probability) Posted on 20140828 (3 Comments) 
 solution and verification by Charlie (20140828 12:44:27) 
Under Tetrahedra Trial (in Shapes) Posted on 20140827 (1 Comments) 
 solution by Charlie (20140827 19:39:03) 
Under Concavity (in Calculus) Posted on 20140826 (2 Comments) 
 observation by Charlie (20140826 17:19:21) 
Under One up (in Probability) Posted on 20140822 (1 Comments) 
 With computer assistance by Charlie (20140822 12:33:30) 
Under Three tasks (in Just Math) Posted on 20140821 (3 Comments) 
 computer solutions by Charlie (20140821 16:53:45) 
Under Grandma's age (in Just Math) Posted on 20140820 (8 Comments) 
 I must be missing something by Charlie (20140820 16:20:37) 
Under Square Cut (in Shapes) Posted on 20140820 (2 Comments) 
 exploded by Charlie (20140820 12:58:18) 
Under Pandigital Ponder II (in Just Math) Posted on 20140819 (3 Comments) 
 computer solution by Charlie (20140819 18:18:00) 
Under Test #4 (in General) Posted on 20140819 (1 Comments) 
 computer solution by Charlie (20140819 12:20:04) 
Under Quaint Quadruplets (in Just Math) Posted on 20140818 (3 Comments) 
 re: software solutionsimilar puzzle solution by Charlie (20140819 10:03:12) 
 software solution by Charlie (20140818 20:58:28) 
Under Crossnumber IV (in General) Posted on 20140818 (3 Comments) 
 attempt without leading zeroes by Charlie (20140818 12:24:28) 
Under Three subsets (in Just Math) Posted on 20140815 (13 Comments) 
 final (?) revision by Charlie (20140816 10:41:22) 
 re(2): solution  now for real?...count again... by Charlie (20140816 00:09:04) 
 another try by Charlie (20140816 00:07:16) 
 solution  now for real? by Charlie (20140815 17:07:08) 
 re(2): computer solution by Charlie (20140815 16:32:20) 
 computer solution by Charlie (20140815 13:06:09) 
Under Cutting corners. (in Shapes) Posted on 20140814 (5 Comments) 
 re(2): what is wanted? by Charlie (20140815 10:07:19) 
 re: what is wanted? by Charlie (20140814 16:41:17) 
 what is wanted? by Charlie (20140814 16:34:12) 
Under Pandigital Ponder (in Just Math) Posted on 20140813 (1 Comments) 
 computer solutions by Charlie (20140813 15:50:53) 
Under Some Triangles Sum 2014 (in Just Math) Posted on 20140812 (5 Comments) 
 re: Possible Solution by Charlie (20140812 17:24:03) 
 computer solution by Charlie (20140812 17:10:24) 
Under Octahedron Vertex Ponder (in Probability) Posted on 20140812 (1 Comments) 
 computer solution by Charlie (20140812 11:41:39) 
Under Fraction Sum Satisfaction (in Just Math) Posted on 20140809 (3 Comments) 
 computer solutions by Charlie (20140809 13:16:49) 
 re: 5 answers by Charlie (20140809 13:14:38) 
Under Guessing ages (in Tricks) Posted on 20140808 (2 Comments) 
 solution by Charlie (20140808 13:14:29) 
Under Pair Ponder (in Probability) Posted on 20140807 (2 Comments) 
 simulation verification by Charlie (20140807 13:29:43) 
 solution by Charlie (20140807 12:22:36) 
Under Find a Frenzy Fibo (in Numbers) Posted on 20140806 (2 Comments) 
 For a similar problem by Charlie (20140806 11:22:46) 
Under Done? No need? ...UNDO! (in Word Problems) Posted on 20140805 (4 Comments) 
 computer solution  no definitions by Charlie (20140805 13:29:27) 
Under Test #2 (in General) Posted on 20140804 (1 Comments) 
 computer solution by Charlie (20140804 17:43:24) 
Under Palindrome Ponder (in Just Math) Posted on 20140804 (1 Comments) 
 solution by Charlie (20140804 13:09:37) 
Under Sixes and Sevens (in Just Math) Posted on 20140802 (4 Comments) 
 computer solution by Charlie (20140802 14:26:11) 
Under Log Divisor Sum (in Just Math) Posted on 20140801 (2 Comments) 
 computer solution by Charlie (20140801 12:36:02) 
Under Easy count (in Just Math) Posted on 20140729 (5 Comments) 
 re: Solution by Charlie (20140730 09:57:26) 
 computer assisted solution by Charlie (20140729 14:38:40) 
Under Test #1 (in Numbers) Posted on 20140729 (2 Comments) 
 computer assisted solution by Charlie (20140729 11:55:29) 
Under Triangle Texture (in Shapes) Posted on 20140728 (2 Comments) 
 re: My guess by Charlie (20140728 17:33:02) 
Under One of a kind (in Just Math) Posted on 20140727 (3 Comments) 
 re(2): contradictions? Yes, Sir by Charlie (20140728 09:56:37) 
 contradictions? by Charlie (20140727 19:10:51) 
Under The decisive straw (in Probability) Posted on 20140725 (6 Comments) 
 computer explorationheuristic approximation by Charlie (20140725 14:06:27) 
Under Testy Triplet Treat II (in Just Math) Posted on 20140725 (4 Comments) 
 solution by Charlie (20140725 12:41:16) 
Under ChooseProduct Conclusion (in Just Math) Posted on 20140723 (1 Comments) 
 computer exploration (possible spoiler) by Charlie (20140723 15:32:03) 
Under Last digit counts (in Numbers) Posted on 20140723 (1 Comments) 
 computer solution by Charlie (20140723 14:30:25) 
Under Reverse Rigor II (in Just Math) Posted on 20140722 (4 Comments) 
 re(2): possible computer solution by Charlie (20140722 13:43:14) 
 possible computer solution by Charlie (20140722 11:58:31) 
Under Quiz Quandary III (in Logic) Posted on 20140715 (8 Comments) 
 ignore previous post: solution correced by Charlie (20140717 13:14:29) 
 computer solution by Charlie (20140717 12:33:20) 
Under Sum Power Digit Determination (in Just Math) Posted on 20140712 (4 Comments) 
 computer solution by Charlie (20140712 12:30:34) 
Under A periodical fraction (in Numbers) Posted on 20140711 (3 Comments) 
 computer solution by Charlie (20140711 13:38:40) 
Under Cinq Confusion (in Shapes) Posted on 20140710 (2 Comments) 
 computer solution by Charlie (20140710 11:55:08) 
Under 3 features (in Numbers) Posted on 20140708 (1 Comments) 
 computer solution by Charlie (20140708 20:32:07) 
Under Mean Muse II (in Just Math) Posted on 20140706 (1 Comments) 
 computer solution by Charlie (20140707 13:27:19) 
Under Go on, it is easy (in General) Posted on 20140705 (1 Comments) 
 solution by Charlie (20140705 14:37:00) 
Under An equation (in Just Math) Posted on 20140703 (5 Comments) 
 computer exploration by Charlie (20140704 11:51:38) 
Under Only one basic solution (in Just Math) Posted on 20140702 (2 Comments) 
 computer solutions by Charlie (20140702 12:33:17) 
Under Arctan Appraisal (in Just Math) Posted on 20140701 (2 Comments) 
 computer timing by Charlie (20140701 13:06:54) 
Under End and Begin II (in Word Problems) Posted on 20140630 (6 Comments) 
 A start by Charlie (20140630 11:01:27) 
Under Some dinner! (in Cryptography) Posted on 20140629 (2 Comments) 
 To avoid food poisoning... by Charlie (20140629 12:50:40) 
Under Six Term Settlement (in Just Math) Posted on 20140626 (3 Comments) 
 computer solutions by Charlie (20140626 15:25:55) 
Under scitemahpla II (in Word Problems) Posted on 20140625 (5 Comments) 
 re: solution by Charlie (20140626 12:56:58) 
 solution by Charlie (20140625 12:56:11) 
Under An enchanted coin (in Probability) Posted on 20140624 (3 Comments) 
 possible solution by Charlie (20140624 15:23:52) 
Under Smarandache Settlement (in Just Math) Posted on 20140624 (1 Comments) 
 computer aided solution by Charlie (20140624 12:58:06) 
Under 2+2=4 is true (in Just Math) Posted on 20140622 (2 Comments) 
 computer solutions by Charlie (20140622 13:07:40) 
Under Minimum Value Muse (in Just Math) Posted on 20140620 (3 Comments) 
 computer solution by Charlie (20140620 12:51:59) 
Under Diagram Dilemma (in Just Math) Posted on 20140619 (1 Comments) 
 solution by Charlie (20140619 15:26:15) 
Under A tall tower (in Geometry) Posted on 20140618 (6 Comments) 
 re: Solution  Spoiler by Charlie (20140619 10:03:56) 
 solution by Charlie (20140619 09:57:57) 
Under Arithmetic Grid II (in Just Math) Posted on 20140612 (2 Comments) 
 The program method by Charlie (20140612 23:44:27) 
Under Three Product Tease (in Just Math) Posted on 20140612 (2 Comments) 
 numbers without proof of completeness by Charlie (20140612 11:37:50) 
Under NinetyNine Nuance (in Just Math) Posted on 20140611 (3 Comments) 
 My path to the wrong answernot a solution by Charlie (20140611 14:55:07) 
Under Integer Illation (in Logic) Posted on 20140610 (4 Comments) 
 computer solution by Charlie (20140610 15:18:45) 
Under The mad hatter (in Word Problems) Posted on 20140609 (5 Comments) 
 8letter words by Charlie (20140609 22:09:03) 
 re: 7letter words from program (spoilers)  continued by Charlie (20140609 22:05:38) 
 7letter words from program (spoilers) by Charlie (20140609 22:04:21) 
 computer program by Charlie (20140609 22:02:42) 
Under Yankee dollar (in Just Math) Posted on 20140606 (9 Comments) 
 computer aided solution by Charlie (20140606 16:54:21) 
Under Four Digit Trial (in Just Math) Posted on 20140605 (3 Comments) 
 computer solution by Charlie (20140605 16:41:56) 
Under 4 ways (in Sequences) Posted on 20140604 (6 Comments) 
 computer solution by Charlie (20140604 18:02:26) 
Under Elementary is easy (in Sequences) Posted on 20140604 (5 Comments) 
 answers (spoilers) by Charlie (20140604 13:45:03) 
Under Sum Settlement (in Just Math) Posted on 20140603 (4 Comments) 
 re: Possible solution  agreed by Charlie (20140603 15:36:15) 
Under Fuel Feat (in Just Math) Posted on 20140603 (4 Comments) 
 re(3): Solution by Charlie (20140603 13:19:40) 
 re: Solution by Charlie (20140603 12:22:29) 
Under Arithmetic Grid (in Just Math) Posted on 20140530 (1 Comments) 
 computer solution by Charlie (20140530 12:01:48) 
Under The pandigital student (in Cryptography) Posted on 20140529 (3 Comments) 
 re: it takes two to 504go.. by Charlie (20140602 10:26:38) 
 If the 8 and the 4 were the same... by Charlie (20140529 11:28:13) 
Under Inverse Square Sum (in Just Math) Posted on 20140528 (5 Comments) 
 re(3): Do i err ?? by Charlie (20140529 09:35:11) 
 re: Do i err ?? by Charlie (20140528 13:34:18) 
Under Money Division Muse (in Just Math) Posted on 20140527 (4 Comments) 
 re: So close yet so far? by Charlie (20140527 23:36:45) 
 computer solution by Charlie (20140527 15:57:58) 
Under Representation Initiation (in Just Math) Posted on 20140526 (3 Comments) 
 re: Simpler computer solution by Charlie (20140527 13:06:02) 
 computer solution by Charlie (20140526 16:47:35) 
Under Floor Limit (in Calculus) Posted on 20140526 (1 Comments) 
 solution by Charlie (20140526 13:21:08) 
Under Eight Embodiment (in Just Math) Posted on 20140525 (6 Comments) 
 computer solution by Charlie (20140525 14:15:40) 
Under Year Yearn (in General) Posted on 20140523 (6 Comments) 
 All except (v) by Charlie (20140523 10:39:46) 
Under Harmonic Sequence Settlement (in Just Math) Posted on 20140522 (3 Comments) 
 solution with computer code and derivation by Charlie (20140522 16:34:42) 
Under Why Haydn ? (in Numbers) Posted on 20140521 (2 Comments) 
 computer solution by Charlie (20140521 16:19:59) 
Under Array Assignment (in Just Math) Posted on 20140520 (2 Comments) 
 Taking into consideration (ii) by Charlie (20140520 15:46:25) 
Under Five Friends (in Logic) Posted on 20140519 (2 Comments) 
 solution by Charlie (20140519 11:03:00) 
Under Side Length Settlement (in Shapes) Posted on 20140518 (3 Comments) 
 numerically from Geometers' Sketchpad by Charlie (20140518 23:54:26) 
Under Guessing Game (in Numbers) Posted on 20140516 (18 Comments) 
 rational play for the highest integral K allowing play in part b by Charlie (20140518 13:16:04) 
 Repaired VB program agrees with Steve's answer to part b by Charlie (20140518 12:06:44) 
 re(3): different part b solution (VB program) by Charlie (20140518 01:13:25) 
 re: different part b solution (VB program) by Charlie (20140517 16:43:29) 
 different part b solution (VB program) by Charlie (20140517 16:15:35) 
 part a solution by Charlie (20140517 01:35:39) 
Under The highest prime (in Numbers) Posted on 20140516 (8 Comments) 
 my computer solution  concatenation assumed by Charlie (20140516 12:49:52) 
Under Expected of each (in Probability) Posted on 20140515 (3 Comments) 
 computer simulation by Charlie (20140515 16:35:46) 
Under Attack Assay (in Probability) Posted on 20140514 (3 Comments) 
 solution by Charlie (20140514 12:56:47) 
Under Quiz Score Settlement (in Liars and Knights) Posted on 20140513 (5 Comments) 
 The way I look at it by Charlie (20140513 11:15:12) 
Under Repdigit Rigor (in Just Math) Posted on 20140511 (2 Comments) 
 computer exploration by Charlie (20140511 16:07:53) 
Under Pandigital concatenations (in Numbers) Posted on 20140510 (1 Comments) 
 computer solutions by Charlie (20140510 15:55:51) 
Under Not in every dictionary (in Cryptography) Posted on 20140509 (2 Comments) 
 one for Wikipedia by Charlie (20140509 15:33:01) 
Under The Ten Statements II (in Logic) Posted on 20140508 (7 Comments) 
 re(2): Solution by Charlie (20140510 10:15:00) 
 re(2): Solution by Charlie (20140509 00:03:11) 
Under Baby Blue (in Probability) Posted on 20140508 (11 Comments) 
 re: ....hesitating... by Charlie (20140509 09:44:05) 
 re: answer by Charlie (20140508 10:57:43) 
 solution by Charlie (20140508 10:56:15) 
Under Big spenders (in Cryptography) Posted on 20140507 (3 Comments) 
 re: Solution, with a possible correction by Charlie (20140507 14:53:18) 
Under Synonym Surveillance (in Word Problems) Posted on 20140506 (3 Comments) 
 computer solutions by Charlie (20140506 14:51:22) 
Under Mobile Phone Muse (in Logic) Posted on 20140505 (2 Comments) 
 computer solutions by Charlie (20140505 13:48:11) 
Under Scitemahpla (in General) Posted on 20140503 (16 Comments) 
 re(3): att Charlie.....just typo .... by Charlie (20140506 09:43:32) 
 re: att Charlie by Charlie (20140505 22:21:46) 
 All that my dictionary can provide by Charlie (20140505 16:29:06) 
 All that my dictionary can provide by Charlie (20140505 16:29:02) 
 re(5): hint.....PARTIAL SPOILER by Charlie (20140505 09:56:29) 
 re(5): hint.....PARTIAL SPOILER by Charlie (20140505 09:49:04) 
 re(3): hint.....PARTIAL SPOILER by Charlie (20140505 00:10:33) 
 re: hint.....PARTIAL SPOILER by Charlie (20140504 11:06:16) 
Under Weird numbers (in Numbers) Posted on 20140502 (2 Comments) 
 computer solution by Charlie (20140502 16:50:42) 
Under Powerful Divisor (in Just Math) Posted on 20140501 (8 Comments) 
 uh oh by Charlie (20140501 16:42:57) 
 re: more examples by Charlie (20140501 16:37:49) 
 more examples by Charlie (20140501 16:35:40) 
 some examples by Charlie (20140501 16:28:34) 
Under Without you (in Numbers) Posted on 20140430 (2 Comments) 
 computer solution by Charlie (20140430 16:33:40) 
Under Making a Multiple of Four (in Numbers) Posted on 20140430 (6 Comments) 
 part 2 simulation by Charlie (20140430 14:38:53) 
 re: Or maybe I'm simple (part I spoiler) by Charlie (20140430 12:42:26) 
Under The end of the line (in Cryptography) Posted on 20140429 (5 Comments) 
 From my cryptogram dictionary by Charlie (20140429 11:12:34) 
Under I / O resolved (in Logic) Posted on 20140428 (4 Comments) 
 going farther by Charlie (20140429 10:03:38) 
Under Inscribed Circle (in Shapes) Posted on 20140427 (2 Comments) 
 GSP method by Charlie (20140427 15:52:02) 
Under 5 Digit Number III (in Just Math) Posted on 20140422 (3 Comments) 
 Proof by Charlie (20140422 13:28:47) 
Under Limiting Ratio II (in Calculus) Posted on 20140421 (1 Comments) 
 the value numerically derived (spoiler) by Charlie (20140421 13:46:49) 
Under Trivia (in Numbers) Posted on 20140421 (7 Comments) 
 alternative answer by Charlie (20140421 12:07:25) 
Under Set Theory (in General) Posted on 20140419 (3 Comments) 
 re: attempt at the rest by Charlie (20140419 14:49:15) 
 attempt at the rest by Charlie (20140419 11:01:51) 
 right off the bat by Charlie (20140419 09:39:42) 
Under Neighbors (in Numbers) Posted on 20140418 (8 Comments) 
 re(2): computer solution by Charlie (20140418 22:14:13) 
 computer solution by Charlie (20140418 13:02:09) 
Under No way to win (in General) Posted on 20140417 (4 Comments) 
 re(2): computer solution for one of the two  att Charlie by Charlie (20140419 09:27:41) 
 both solutions now by Charlie (20140419 09:14:38) 
 computer solution for one of the two by Charlie (20140419 01:13:13) 
Under Mod 3 alphametics (in Just Math) Posted on 20140415 (2 Comments) 
 In Basic code by Charlie (20140415 16:21:51) 
Under My phone is 2543663 (in Probability) Posted on 20140415 (5 Comments) 
 re: Two different exact answers by Charlie (20140415 23:47:38) 
 solution by Charlie (20140415 12:49:18) 
Under PseudoFIBO (in Sequences) Posted on 20140414 (5 Comments) 
 computer solution part b by Charlie (20140414 16:06:52) 
Under Question Quandary (in Logic) Posted on 20140414 (2 Comments) 
 computer solutionVB 5.0 by Charlie (20140414 12:33:12) 
Under The right subset (in Word Problems) Posted on 20140413 (1 Comments) 
 computer explorationwords only; no phrases by Charlie (20140413 13:02:11) 
Under Upside down (OEIS A045573) (in Numbers) Posted on 20140411 (6 Comments) 
 re: Direct Basic solution by Charlie (20140412 09:35:09) 
 computer solution by Charlie (20140411 15:47:31) 
Under Four Cards (in Logic) Posted on 20140410 (2 Comments) 
 the computer method by Charlie (20140410 14:58:10) 
Under Integer Divisibility Dilemma (in Just Math) Posted on 20140410 (6 Comments) 
 Any with sum of x and y under 10000no proof of completeness by Charlie (20140410 11:58:58) 
Under Family Murder Muse (in Logic) Posted on 20140409 (4 Comments) 
 computer solution  new computer by Charlie (20140409 14:40:09) 
Under A Quicky III (in Numbers) Posted on 20140409 (9 Comments) 
 re: How many are divisible by 1? by Charlie (20140409 12:46:01) 
 computer solution by Charlie (20140409 12:35:01) 
Under Consecutive Trio (in Just Math) Posted on 20140408 (3 Comments) 
 re: ANSWERS by Charlie (20140408 16:38:20) 
 computer solution by Charlie (20140408 16:37:41) 
Under Noprimes sequence (in Numbers) Posted on 20140407 (1 Comments) 
 computer solution by Charlie (20140407 13:46:22) 
Under Positively Palindromic (in Just Math) Posted on 20140406 (2 Comments) 
 solution by Charlie (20140406 20:50:04) 
Under Fold Ratio (in Shapes) Posted on 20140405 (2 Comments) 
 via Geometers' Sketchpad by Charlie (20140406 01:04:18) 
Under A Quicky II (in Numbers) Posted on 20140403 (7 Comments) 
 re(3): Clarification? by Charlie (20140403 11:45:01) 
Under Fold Judgement II (in Shapes) Posted on 20140401 (6 Comments) 
 re: different value by Charlie (20140401 22:44:54) 
 Geometers' Sketchpad Solution by Charlie (20140401 15:29:38) 
 re: Full solution by Charlie (20140401 15:27:18) 
Under Ternary train (in Just Math) Posted on 20140328 (3 Comments) 
 computer solution by Charlie (20140328 14:26:02) 
Under In or out? (in Probability) Posted on 20140328 (2 Comments) 
 very, very, very close to ... by Charlie (20140328 10:58:30) 
Under Harmless? (in General) Posted on 20140326 (2 Comments) 
 computer solution by Charlie (20140326 21:16:50) 
Under Same Six Digits (in Just Math) Posted on 20140326 (6 Comments) 
 program solution by Charlie (20140326 10:59:32) 
Under Words count (in Numbers) Posted on 20140325 (8 Comments) 
 re(2): solution to part 1; thoughts on part 2 by Charlie (20140326 08:55:42) 
 solution to part 1; thoughts on part 2 by Charlie (20140325 15:41:33) 
 re(2): Solution by Charlie (20140325 15:39:29) 
Under How high? (in Numbers) Posted on 20140325 (4 Comments) 
 of course there's brute force by Charlie (20140325 11:06:18) 
Under A coded phrase (in General) Posted on 20140324 (2 Comments) 
 solution in Basic by Charlie (20140324 14:03:07) 
Under In pi at last (in Sequences) Posted on 20140324 (3 Comments) 
 solution by Charlie (20140324 10:35:18) 
Under FactorialSquare Sum (in Just Math) Posted on 20140323 (7 Comments) 
 re: more by Charlie (20140323 10:27:33) 
 computer exploration by Charlie (20140323 10:19:54) 
Under Simultaneous Settlement IV (in Just Math) Posted on 20140322 (2 Comments) 
 computer exploration by Charlie (20140322 13:17:21) 
Under Solution or solutions (in Sequences) Posted on 20140320 (6 Comments) 
 re(3): computer evaluation  sums and products by Charlie (20140321 00:18:08) 
 re(2): computer evaluation  sums and products by Charlie (20140320 23:06:48) 
 computer evaluation by Charlie (20140320 15:34:49) 
Under Sum Divisibility Dilemma (in Just Math) Posted on 20140318 (6 Comments) 
 solution by Charlie (20140318 15:10:39) 
Under Liars Logic 2 (in Liars and Knights) Posted on 20140317 (2 Comments) 
 computer solution by Charlie (20140317 16:25:04) 
Under Safe Crack (in Just Math) Posted on 20140317 (3 Comments) 
 computer solution by Charlie (20140317 12:06:55) 
Under Summing the factorials (in Numbers) Posted on 20140315 (3 Comments) 
 re: computer solution by Charlie (20140316 09:12:03) 
Under Liars Logic (in Liars and Knights) Posted on 20140313 (1 Comments) 
 computer solution by Charlie (20140313 19:18:44) 
Under Prime Equation (in Just Math) Posted on 20140312 (4 Comments) 
 re: solution by Charlie (20140313 08:36:18) 
 computer explorationno proof by Charlie (20140312 15:14:27) 
Under Ady's RH problem (in Logic) Posted on 20140311 (6 Comments) 
 for the curious on the question not asked by Charlie (20140311 17:01:47) 
Under A permuted multiplication (in Numbers) Posted on 20140311 (9 Comments) 
 solution by Charlie (20140311 14:30:36) 
Under Pythagorean triangle (in Just Math) Posted on 20140310 (2 Comments) 
 The 21 smallest by Charlie (20140310 15:42:35) 
Under Some Powers Sum Power (in Just Math) Posted on 20140309 (3 Comments) 
 re(2): Near Misses by Charlie (20140309 18:55:13) 
Under Chair Cue (in Logic) Posted on 20140307 (2 Comments) 
 computer solution by Charlie (20140307 12:50:56) 
Under Capital City Conclusion (in General) Posted on 20140306 (3 Comments) 
 computer solution by Charlie (20140306 22:35:41) 
Under Equilateral Crease II (in Shapes) Posted on 20140305 (3 Comments) 
 GSP approximation by Charlie (20140305 14:50:55) 
Under Prime+reversal= prime (in Numbers) Posted on 20140304 (4 Comments) 
 UBASIC solution by Charlie (20140304 15:08:19) 
Under Card game III (in Logic) Posted on 20140304 (5 Comments) 
 solution by Charlie (20140304 12:05:31) 
Under Formula Formulation (in Just Math) Posted on 20140303 (4 Comments) 
 re: first few  larger n by Charlie (20140303 17:27:31) 
 first few by Charlie (20140303 17:22:45) 
Under Dayknights and nightknights 8 (in Logic) Posted on 20140303 (4 Comments) 
 re: W H Y ? by Charlie (20140303 13:17:40) 
 computer solution by Charlie (20140303 13:17:00) 
Under Minimizing Trigo value (in Numbers) Posted on 20140302 (7 Comments) 
 re(2): answer by Charlie (20140302 18:45:59) 
Under Switching Teams (in Probability) Posted on 20140228 (8 Comments) 
 re: n = 4 (spoiler) by Charlie (20140228 17:51:23) 
 solution by Charlie (20140228 17:22:44) 
 re: To Charlie. by Charlie (20140228 14:39:21) 
Under Minimum Integer (in Just Math) Posted on 20140228 (4 Comments) 
 re: Brute force solution by Charlie (20140228 12:39:24) 
Under Reverso (in Numbers) Posted on 20140227 (2 Comments) 
 computer solution by Charlie (20140227 17:05:19) 
Under Special polygon (in Shapes) Posted on 20140227 (1 Comments) 
 solution by Charlie (20140227 12:39:52) 
Under 8675309 (in Numbers) Posted on 20140226 (2 Comments) 
 computer solution by Charlie (20140226 17:07:50) 
Under sum Up (in Numbers) Posted on 20140226 (5 Comments) 
 probable computer solution by Charlie (20140226 12:58:59) 
Under Bullseye II (in Logic) Posted on 20140225 (3 Comments) 
 computer solution by Charlie (20140225 15:56:42) 
Under All Odds (in Numbers) Posted on 20140224 (2 Comments) 
 computer solution by Charlie (20140224 12:34:01) 
Under More mean median mode (in Just Math) Posted on 20140221 (3 Comments) 
 possible solution by Charlie (20140221 15:49:04) 
Under Mean = median (in Just Math) Posted on 20140220 (4 Comments) 
 solution by Charlie (20140220 16:07:36) 
Under Musicians (in Logic) Posted on 20140219 (2 Comments) 
 Is this it? by Charlie (20140220 18:22:35) 
Under Absolute Value Muse (in Just Math) Posted on 20140219 (4 Comments) 
 re: General Solution  Two geometric methods by Charlie (20140220 09:56:14) 
 solution by Charlie (20140219 14:16:30) 
Under Get a good look (in Calculus) Posted on 20140218 (5 Comments) 
 solution by Charlie (20140218 17:18:57) 
Under Crime Commitment Conclusion III (in Logic) Posted on 20140218 (3 Comments) 
 solution by Charlie (20140218 13:38:25) 
Under The Equiangular Hexagon (in Geometry) Posted on 20140217 (1 Comments) 
 computer solution by Charlie (20140217 17:32:03) 
Under Six sets (in Numbers) Posted on 20140217 (7 Comments) 
 re(2): computer solution by Charlie (20140218 23:39:08) 
 computer solution by Charlie (20140217 13:08:09) 
Under Red Area (in Shapes) Posted on 20140216 (1 Comments) 
 After playing with Geometers' Sketchpad by Charlie (20140216 12:30:22) 
Under What did I miss? (in Just Math) Posted on 20140214 (1 Comments) 
 computer solution by Charlie (20140215 15:49:39) 
Under lcm reflection (in Just Math) Posted on 20140214 (2 Comments) 
 computer solution by Charlie (20140214 11:47:49) 
Under Will Wangle (in Just Math) Posted on 20140213 (5 Comments) 
 solution by Charlie (20140213 12:17:07) 
Under Five Hunters (in Logic) Posted on 20140212 (1 Comments) 
 computer solution by Charlie (20140213 01:30:14) 
Under Largest Overlapped Area (in Shapes) Posted on 20140211 (3 Comments) 
 Geometers' Sketchpad results by Charlie (20140211 21:34:08) 
Under Remove last three to get cube root (in Numbers) Posted on 20140211 (3 Comments) 
 cell phone solution by Charlie (20140211 11:11:21) 
Under Quiz Results III (in Logic) Posted on 20140210 (4 Comments) 
 computer solution by Charlie (20140210 12:57:57) 
Under Alphametic Base Baffle (in Just Math) Posted on 20140207 (2 Comments) 
 computer solution by Charlie (20140207 14:13:01) 
Under Area Ascertainment (in Shapes) Posted on 20140206 (1 Comments) 
 solution by Charlie (20140206 16:36:27) 
Under A Skirmish (in Logic) Posted on 20140205 (3 Comments) 
 computer solution: 6 scenarios? by Charlie (20140205 12:33:12) 
Under My crazy die (in Probability) Posted on 20140203 (3 Comments) 
 assuming a triplet must be consecutive within the number by Charlie (20140203 18:47:16) 
Under Hockey Score Settlement (in Logic) Posted on 20140203 (2 Comments) 
 computer solution by Charlie (20140203 13:22:32) 
Under Deduction Problem (in Numbers) Posted on 20140131 (1 Comments) 
 computer solution by Charlie (20140131 22:00:07) 
Under Four special squares (in Numbers) Posted on 20140130 (5 Comments) 
 computer solution by Charlie (20140130 18:51:01) 
 re: solutions by Charlie (20140130 18:00:37) 
Under Suit Settlement (in Logic) Posted on 20140129 (2 Comments) 
 computer solution by Charlie (20140129 18:55:46) 
Under Potluck Dinner (in Logic) Posted on 20140127 (1 Comments) 
 computer solution by Charlie (20140127 21:43:27) 
Under N & n (in Just Math) Posted on 20140127 (7 Comments) 
 98 results not requiring "distinct" by Charlie (20140127 15:48:49) 
 re: Looking at my wall by Charlie (20140127 13:36:49) 
 computer solution for all the solutions by Charlie (20140127 13:33:02) 
Under Geography? Spelling? Logic? (in Tricks) Posted on 20140124 (4 Comments) 
 question of identity by Charlie (20140124 12:49:23) 
Under An economic reality (in General) Posted on 20140123 (1 Comments) 
 computer solution by Charlie (20140123 17:19:20) 
Under Restaurant Murder Muse (in Logic) Posted on 20140123 (3 Comments) 
 computer solution by Charlie (20140123 11:15:40) 
Under Maximizing Matches Model (in Numbers) Posted on 20140122 (16 Comments) 
 re(7): restrictions  no spoiler (spoiler added) by Charlie (20140126 10:49:48) 
 re(3): A start by Charlie (20140123 09:56:50) 
 re: A start by Charlie (20140122 16:01:15) 
 My conventional tries by Charlie (20140122 16:00:00) 
Under Pumpkins 3 (in Weights and Scales) Posted on 20140122 (6 Comments) 
 computer solution by Charlie (20140122 11:38:11) 
Under Tribe Travail (in Liars and Knights) Posted on 20140121 (3 Comments) 
 computer solution by Charlie (20140121 16:30:58) 
Under Probing the prob. (in Probability) Posted on 20140121 (5 Comments) 
 re(2): 2nd question first (spoiler) rethink. by Charlie (20140121 12:53:11) 
 solution by Charlie (20140121 12:51:18) 
Under Created after midnight (in General) Posted on 20140120 (2 Comments) 
 computer solution (spoiler) by Charlie (20140120 19:15:36) 
Under Seven Multiple Muse II (in Just Math) Posted on 20140117 (1 Comments) 
 computer solution by Charlie (20140117 12:49:46) 
Under Some Squares Sum Year (in Just Math) Posted on 20140116 (2 Comments) 
 re: I can program  same answers in Basic by Charlie (20140116 15:53:34) 
Under Impostor Identification (in Logic) Posted on 20140115 (2 Comments) 
 computer solution by Charlie (20140115 12:41:58) 
Under U * I = $$$ (in General) Posted on 20140114 (1 Comments) 
 computer solution by Charlie (20140114 17:49:20) 
Under Repeated Digits (in Sequences) Posted on 20140114 (2 Comments) 
 computer solution by Charlie (20140114 11:55:29) 
Under Numerators sum also (in Numbers) Posted on 20140113 (1 Comments) 
 computer solution by Charlie (20140113 17:40:03) 
Under Factorial Difference Digits (in Just Math) Posted on 20140112 (6 Comments) 
 How it could be done with a calculator (spoiler) by Charlie (20140112 17:23:08) 
 re(2): A thought by Charlie (20140112 13:52:54) 
 A thought by Charlie (20140112 12:19:41) 
Under A missing proverb (in General) Posted on 20140109 (2 Comments) 
 computer solution by Charlie (20140109 18:47:47) 
Under Unusual Crossword Puzzle (in Word Problems) Posted on 20140109 (5 Comments) 
 typos in official solution by Charlie (20140118 10:57:29) 
Under Witness Wangle (in Logic) Posted on 20140108 (1 Comments) 
 computer solution by Charlie (20140108 16:08:35) 
Under A quotation (in Numbers) Posted on 20140107 (2 Comments) 
 computer solution by Charlie (20140107 18:05:03) 
Under Name Determination (in Logic) Posted on 20140107 (1 Comments) 
 computer solution by Charlie (20140107 14:47:33) 
Under A hidden message (in Cryptography) Posted on 20140106 (5 Comments) 
 re(2): 0919192 etc HINT re keyword by Charlie (20140107 14:40:06) 
Under Palindromic and pgonal (in Just Math) Posted on 20140105 (1 Comments) 
 computer solution by Charlie (20140105 17:47:49) 
Under Simple trigo (in Geometry) Posted on 20140103 (6 Comments) 
 re: trying to post thru notepad by Charlie (20140105 10:19:27) 
 re: tan15 FIRST by Charlie (20140103 17:26:09) 
Under Primed and Perfect (in Just Math) Posted on 20140103 (1 Comments) 
 computer solution by Charlie (20140103 12:47:43) 
Under Supreme Subset (in Just Math) Posted on 20140102 (6 Comments) 
 re: Blindly crossing possible solution by Charlie (20140102 15:14:37) 
Under Pairagrams (in Word Problems) Posted on 20131231 (1 Comments) 
 computer exploration of bonus tasks by Charlie (20131231 11:53:19) 
Under Palindromic and prime (in Numbers) Posted on 20131230 (1 Comments) 
 computer solution by Charlie (20131230 17:45:16) 
Under Boys' names (in Word Problems) Posted on 20131230 (10 Comments) 
 re(2): Names by Charlie (20140103 13:27:35) 
 re: Names by Charlie (20140103 13:23:43) 
 re: Nobrainer by Charlie (20131231 00:02:41) 
 from a larger data base by Charlie (20131230 15:20:19) 
 No Subject by Charlie (20131230 12:17:33) 
Under Trigonometric product (in Numbers) Posted on 20131229 (4 Comments) 
 computer solution by Charlie (20131229 14:56:59) 
 computer explorationtable of values by Charlie (20131229 13:26:28) 
Under Going Maximum With Harmonic (in Just Math) Posted on 20131228 (2 Comments) 
 computer solution by Charlie (20131228 16:00:13) 
Under Simultaneous Settlement III (in Just Math) Posted on 20131227 (1 Comments) 
 solution without extra challenge (spoiler) by Charlie (20131227 17:29:39) 
Under A sum of 3 (in Numbers) Posted on 20131227 (2 Comments) 
 re: computer solutions by Charlie (20131227 13:14:13) 
 computer solutions by Charlie (20131227 12:41:32) 
Under Hotel Room Rumination (in Logic) Posted on 20131226 (5 Comments) 
 computer solution by Charlie (20131226 16:05:19) 
Under A neat trick (in Tricks) Posted on 20131226 (5 Comments) 
 re: I would need a calculator (spoiler) by Charlie (20131226 13:34:29) 
Under Algebra and Primes (in Numbers) Posted on 20131225 (3 Comments) 
 computer exploration (spoiler) by Charlie (20131225 12:22:06) 
Under Tic Tac Toe II (in Probability) Posted on 20131224 (2 Comments) 
 verification by simulation by Charlie (20131224 21:45:24) 
 computer aided solution by Charlie (20131224 20:41:09) 
Under Hidden Animals (in General) Posted on 20131224 (3 Comments) 
 solution by Charlie (20131224 11:12:03) 
Under Seven Multiple Muse (in Just Math) Posted on 20131223 (1 Comments) 
 computer solution by Charlie (20131223 23:28:37) 
Under Madam Marathon (in Just Math) Posted on 20131223 (1 Comments) 
 solution by Charlie (20131223 12:37:42) 
Under Divisible By 2475 (in Just Math) Posted on 20131220 (1 Comments) 
 noncomputer solution by Charlie (20131220 17:32:31) 
Under Array Arrangement (in Just Math) Posted on 20131219 (1 Comments) 
 computer solution by Charlie (20131219 19:07:41) 
Under Algorithm requested (in Algorithms) Posted on 20131218 (3 Comments) 
 a couple of algorithms by Charlie (20131218 13:09:55) 
Under Unitary perfect numbers (in Just Math) Posted on 20131216 (10 Comments) 
 re(3): just ...correction by Charlie (20131217 10:07:19) 
 re(3): just look up by SH by Charlie (20131217 10:04:18) 
 re: just look up  spoiler by Charlie (20131216 16:41:29) 
 computer solution by Charlie (20131216 16:26:07) 
Under Dueling Weathermen (in Probability) Posted on 20131216 (1 Comments) 
 Bayes by Charlie (20131216 12:33:04) 
Under All 1's (in Numbers) Posted on 20131214 (3 Comments) 
 re(2): Divide and conquer (spoiler) & a challenge by Charlie (20131215 10:14:07) 
Under Widow Surmise (in Logic) Posted on 20131212 (5 Comments) 
 computer solution by Charlie (20131212 17:51:21) 
Under Last but not the least (in Numbers) Posted on 20131212 (8 Comments) 
 re(4): All things being equal ... (spoiler) by Charlie (20131213 01:54:49) 
 re(2): All things being equal ... (spoiler) by Charlie (20131212 11:13:20) 
Under Profession Pursuit (in Logic) Posted on 20131211 (4 Comments) 
 computer solution by Charlie (20131211 16:10:40) 
Under Who's asking? (in Word Problems) Posted on 20131211 (6 Comments) 
 re(2): I'll play (spoiler) by Charlie (20131213 12:33:30) 
Under Square Crossed Sequence (in Sequences) Posted on 20131209 (3 Comments) 
 computer exploration  no proof of completeness by Charlie (20131209 16:43:04) 
Under Two Rectangles (in Geometry) Posted on 20131209 (2 Comments) 
 computer solutions by Charlie (20131209 13:28:31) 
Under FeetInch Transpose (in Weights and Scales) Posted on 20131206 (7 Comments) 
 re: Disclaimer by Charlie (20131207 00:09:20) 
 computer solution by Charlie (20131206 17:05:59) 
Under 1998 (in Numbers) Posted on 20131205 (5 Comments) 
 re: Just the first  UBASIC code agrees by Charlie (20131205 15:50:09) 
 part 3 using UBASIC by Charlie (20131205 15:46:56) 
 part 2? by Charlie (20131205 15:42:00) 
Under Logical Choice (in Logic) Posted on 20131205 (4 Comments) 
 solution by Charlie (20131205 15:34:39) 
 re: liars sometimes prosper (spoiler?) by Charlie (20131205 14:38:16) 
Under Consecutive Base Baffle (in Just Math) Posted on 20131204 (4 Comments) 
 computer solution by Charlie (20131204 17:56:33) 
Under APPLE + LEMON = BANANA (in Numbers) Posted on 20131204 (5 Comments) 
 re(4): answer  spoiler eddited: no tables by Charlie (20131205 09:45:09) 
 re: answer  spoiler by Charlie (20131204 13:26:54) 
Under My first is in MEAT, but not in FEET (in Tricks) Posted on 20131203 (1 Comments) 
 solution by Charlie (20131203 16:13:13) 
Under Lively Letters (in Logic) Posted on 20131202 (8 Comments) 
 If computers had been allowed, there'd still be room for some logic. by Charlie (20131203 11:28:24) 
Under Continued Multiples (in Numbers) Posted on 20131129 (3 Comments) 
 computer solution by Charlie (20131129 17:18:15) 
Under Quiz Quandary II (in Logic) Posted on 20131129 (6 Comments) 
 computer solutions by Charlie (20131129 12:34:03) 
Under Pentagon in a Square (in Geometry) Posted on 20131128 (1 Comments) 
 solution by Charlie (20131128 13:11:40) 
Under Harmonic Harness (in Probability) Posted on 20131127 (2 Comments) 
 computer solution and extension, but not the bonus by Charlie (20131127 16:45:02) 
Under Hexagonal Palindrome (in Just Math) Posted on 20131126 (2 Comments) 
 computer solution by Charlie (20131126 19:42:25) 
Under Equal sums on a circle (in General) Posted on 20131126 (1 Comments) 
 computer solution by Charlie (20131126 12:13:40) 
Under 20 Word Lattice I (in Word Problems) Posted on 20131125 (3 Comments) 
 computer solution by Charlie (20131125 17:56:11) 
Under Dayknights and nightknights 7 (in Logic) Posted on 20131125 (1 Comments) 
 solution by Charlie (20131125 14:01:08) 
Under A 6digit answer (in Numbers) Posted on 20131124 (2 Comments) 
 computer solution by Charlie (20131124 13:21:52) 
Under Eve & Odd (in Numbers) Posted on 20131122 (5 Comments) 
 computer solution by Charlie (20131123 15:22:55) 
Under Upon Reflection (in Logic) Posted on 20131122 (13 Comments) 
 Is this it? by Charlie (20131122 12:56:19) 
Under Testing Three Students (in Just Math) Posted on 20131120 (2 Comments) 
 solution by Charlie (20131120 13:11:37) 
Under LCM equation (in Numbers) Posted on 20131119 (5 Comments) 
 re(2): Proof by Charlie (20131120 09:46:52) 
 Proof by Charlie (20131119 18:11:31) 
Under 8 dice, 3 questions (in Numbers) Posted on 20131118 (1 Comments) 
 computer solutions for (a) and (c) by Charlie (20131118 21:28:31) 
Under Embedded Triangles (in Shapes) Posted on 20131116 (1 Comments) 
 playing with GSP by Charlie (20131116 11:39:19) 
Under Digital Dilemma (in Just Math) Posted on 20131115 (7 Comments) 
 re(2): The last few digits of a smaller number by Charlie (20131117 10:16:04) 
 thoughts on part 2 by Charlie (20131115 12:24:35) 
 computeraided solution to part 1 by Charlie (20131115 12:16:03) 
Under Define winning strategy (in Games) Posted on 20131114 (6 Comments) 
 within the constraints by Charlie (20131115 09:47:57) 
 re: How to win. by Charlie (20131115 09:41:54) 
Under Four Egyptian Fractions (in Numbers) Posted on 20131113 (6 Comments) 
 computer solution by Charlie (20131113 16:18:04) 
Under Consecutive Additions (in Numbers) Posted on 20131112 (6 Comments) 
 re(2): computer solution  wondering by Charlie (20131112 19:51:12) 
 computer solution by Charlie (20131112 18:52:56) 
Under Slippery Supplier (in Weights and Scales) Posted on 20131112 (6 Comments) 
 solution. by Charlie (20131112 13:53:16) 
Under Finding Good Batteries (in Weights and Scales) Posted on 20131111 (8 Comments) 
 re(2): my solution by Charlie (20131112 00:11:51) 
 my solution by Charlie (20131111 17:27:25) 
Under Covert Quantity IV (in Numbers) Posted on 20131111 (1 Comments) 
 solution by Charlie (20131111 14:03:17) 
Under Hexagon in a square (in Shapes) Posted on 20131110 (1 Comments) 
 solution by Charlie (20131110 15:25:21) 
Under Two possible sums (in Numbers) Posted on 20131108 (1 Comments) 
 computer solution by Charlie (20131108 17:25:13) 
Under Some Powers Sum 2008 (in Just Math) Posted on 20131108 (3 Comments) 
 re: more results by Charlie (20131108 17:39:58) 
 computer solution by Charlie (20131108 13:34:46) 
Under Dart Discharge (in Logic) Posted on 20131107 (2 Comments) 
 computer solution by Charlie (20131107 11:39:56) 
Under 8_Primes IV (in Numbers) Posted on 20131106 (1 Comments) 
 computer solutions by Charlie (20131106 17:30:35) 
Under Word Grids (in Word Problems) Posted on 20131106 (1 Comments) 
 Solution by Charlie (20131106 13:00:02) 
Under Four Digits (in Numbers) Posted on 20131105 (4 Comments) 
 computer solution by Charlie (20131105 13:17:32) 
Under Quadratic Quandary (in Just Math) Posted on 20131104 (6 Comments) 
 Two real solutions by Charlie (20131106 09:58:00) 
 Jer seems right; I must have erred somewhere by Charlie (20131104 15:58:22) 
 roots by Charlie (20131104 15:53:00) 
Under Triangles And Rectangles Pair (in Geometry) Posted on 20131101 (1 Comments) 
 computer solution by Charlie (20131101 11:27:22) 
Under Fold Judgement (in Shapes) Posted on 20131030 (1 Comments) 
 solution by Charlie (20131030 22:33:17) 
Under Polycubic surface (in Shapes) Posted on 20131029 (1 Comments) 
 possible solution by Charlie (20131029 14:50:06) 
Under Slow Cows (in General) Posted on 20131028 (4 Comments) 
 solution by Charlie (20131028 13:02:30) 
Under Drinking Dwarfs (in Just Math) Posted on 20131023 (6 Comments) 
 towards a solution by Charlie (20131023 14:55:44) 
Under Sum of Cubes (in Numbers) Posted on 20131023 (5 Comments) 
 going further with the computer, but still 14 missing by Charlie (20131023 12:55:41) 
 re: Computer findings, leaving 45 cases for analytic methodslist continued by Charlie (20131023 12:24:51) 
 Computer findings, leaving 45 cases for analytic methods by Charlie (20131023 12:22:42) 
Under 8_Primes III (in Numbers) Posted on 20131021 (1 Comments) 
 computer solutions by Charlie (20131021 20:21:42) 
Under Five by Five (in Numbers) Posted on 20131021 (2 Comments) 
 modular solution by Charlie (20131021 13:05:30) 
Under Take the right one (in Weights and Scales) Posted on 20131018 (18 Comments) 
 re(2): question for Kenny by Charlie (20131019 01:38:08) 
Under Geoalphametic (in General) Posted on 20131016 (2 Comments) 
 computer solution by Charlie (20131016 15:45:32) 
Under 8_Primes II (in Numbers) Posted on 20131015 (1 Comments) 
 computer solution by Charlie (20131015 20:42:09) 
Under Reciprocal Equation #5 (in Just Math) Posted on 20131015 (3 Comments) 
 computer generated answers without proof by Charlie (20131015 12:41:22) 
Under Tank draining (in Algorithms) Posted on 20131014 (6 Comments) 
 more complex than it seems at first glance by Charlie (20131014 17:29:43) 
Under LCM by pairs (in Just Math) Posted on 20131014 (4 Comments) 
 analytic and computer solutions by Charlie (20131014 10:38:52) 
Under Milestone Muse (in Just Math) Posted on 20131010 (3 Comments) 
 computer solution by Charlie (20131011 00:35:06) 
Under Hobsons choice(?) (in Numbers) Posted on 20131010 (9 Comments) 
 computer solution with interpretation by Charlie (20131012 17:53:20) 
Under 8_Primes I (in Numbers) Posted on 20131009 (1 Comments) 
 computer solutions by Charlie (20131009 18:06:22) 
Under Race Resolution (in Just Math) Posted on 20131008 (2 Comments) 
 solution by Charlie (20131008 18:09:07) 
Under Two cars, three towns (in Just Math) Posted on 20131007 (3 Comments) 
 solution if I did the algebra right by Charlie (20131007 17:28:46) 
Under 4x4 Grid Logic III (in Logic) Posted on 20131007 (2 Comments) 
 p and p solution by Charlie (20131007 11:54:23) 
Under First Floobles Factorization (in General) Posted on 20131004 (2 Comments) 
 computer solution by Charlie (20131004 19:51:51) 
Under Feisty Fiftysix (in Just Math) Posted on 20131004 (5 Comments) 
 computer solution by Charlie (20131004 11:44:12) 
Under GCD to product (in Just Math) Posted on 20131003 (4 Comments) 
 computer solution by Charlie (20131004 11:48:37) 
Under Host Colligation (in Logic) Posted on 20131002 (2 Comments) 
 computer solution by Charlie (20131002 12:20:52) 
Under Repunit Rigor II (in Just Math) Posted on 20131001 (3 Comments) 
 computer exploration by Charlie (20131001 19:35:16) 
Under Imperfectly Cubed (in Just Math) Posted on 20130929 (6 Comments) 
 re(4): computer solutioNs ....NOT YET by Charlie (20130930 00:28:11) 
 re(2): computer solutios by Charlie (20130929 20:00:04) 
 computer solutios by Charlie (20130929 12:02:18) 
Under Simultaneous Settlement II (in Just Math) Posted on 20130926 (3 Comments) 
 solution by Charlie (20130926 13:01:45) 
Under Sequence Limit (in Calculus) Posted on 20130924 (2 Comments) 
 Heuristic method by Charlie (20130924 13:26:21) 
Under Prime with distinct digits (in Numbers) Posted on 20130918 (2 Comments) 
 computer solution by Charlie (20130918 17:33:46) 
Under Age Ascertainment IV (in Logic) Posted on 20130918 (2 Comments) 
 solution?? by Charlie (20130918 12:30:43) 
Under Big areas (in Numbers) Posted on 20130917 (16 Comments) 
 re: att: Charlie by Charlie (20130920 23:43:20) 
 re(4): No Subject  solution continued by Charlie (20130918 00:25:37) 
 re: No Subject  solution continued by Charlie (20130917 18:17:29) 
 No Subject by Charlie (20130917 18:15:52) 
Under Nominal Expression Sum (in Just Math) Posted on 20130917 (4 Comments) 
 My faulty p'n'p and successful computer solution. by Charlie (20130917 13:49:24) 
Under Staggered divisibility (in Numbers) Posted on 20130916 (3 Comments) 
 computer solution by Charlie (20130916 11:51:44) 
Under Connnected Construction (in Just Math) Posted on 20130913 (2 Comments) 
 computer solution by Charlie (20130913 12:24:44) 
Under Divisibility wanted (in Numbers) Posted on 20130912 (1 Comments) 
 computer solution by Charlie (20130912 15:46:20) 
Under Prime candidates (in Numbers) Posted on 20130911 (1 Comments) 
 computer exploration by Charlie (20130911 17:08:30) 
Under Mysterious Sequence (in Sequences) Posted on 20130911 (3 Comments) 
 taking the hints by Charlie (20130912 00:15:39) 
Under Current Age Conclusion (in Logic) Posted on 20130910 (5 Comments) 
 Hybrid solution: part computer, then p'n'p by Charlie (20130910 17:33:12) 
Under Safe Combination (in Logic) Posted on 20130909 (2 Comments) 
 computer solution by Charlie (20130909 17:29:58) 
Under Different Routes (in Logic) Posted on 20130909 (2 Comments) 
 computer solution by Charlie (20130909 12:11:38) 
Under The Great (in Just Math) Posted on 20130906 (2 Comments) 
 solution to a, and algorithm for b by Charlie (20130909 13:03:14) 
 Where to find the sequence by Charlie (20130909 09:47:10) 
Under Two top targets (in Numbers) Posted on 20130906 (2 Comments) 
 computer solution by Charlie (20130906 12:10:14) 
Under Expression Ratio (in Just Math) Posted on 20130903 (4 Comments) 
 No Subject by Charlie (20130903 19:51:38) 
Under Odd Men Continued (in General) Posted on 20130902 (1 Comments) 
 computeraided decoding by Charlie (20130902 21:31:11) 
Under How many children? (in Just Math) Posted on 20130902 (5 Comments) 
 computer solution by Charlie (20130902 14:20:54) 
Under The Broken Cash Register (in Just Math) Posted on 20130830 (1 Comments) 
 computer solution by Charlie (20130830 17:29:10) 
Under Crossnumber III (in General) Posted on 20130829 (5 Comments) 
 Hint set by Charlie (20130830 10:10:45) 
 question intended by Charlie (20130829 22:35:37) 
Under NegaFibo series (in Numbers) Posted on 20130829 (2 Comments) 
 solution by Charlie (20130829 13:58:12) 
Under Wild and Wooley Numbers (in Numbers) Posted on 20130828 (2 Comments) 
 Part 1: producing the 5. No extra credit. by Charlie (20130828 15:50:03) 
Under The Two Cubes (in Logic) Posted on 20130828 (1 Comments) 
 solution by Charlie (20130828 13:30:29) 
Under The 1979 Series (in Sequences) Posted on 20130827 (1 Comments) 
 computer solution by Charlie (20130827 18:07:02) 
Under Uncle Christmas (in Logic) Posted on 20130827 (3 Comments) 
 re(2): computer solution by Charlie (20130901 16:37:40) 
 computer solution by Charlie (20130827 13:17:51) 
Under River Trip (in Logic) Posted on 20130826 (4 Comments) 
 re: Solution by Charlie (20130827 10:16:10) 
 computer solution by Charlie (20130826 17:11:39) 
Under Mission impossible II (in Numbers) Posted on 20130826 (7 Comments) 
 Gosh, and aha by Charlie (20130827 10:19:08) 
 re(2): thoughts clarification by Charlie (20130826 21:28:26) 
 thoughts by Charlie (20130826 13:44:58) 
Under The cunning Condition (in Just Math) Posted on 20130825 (5 Comments) 
 re(3): answer ONLY  spoiler by Charlie (20130825 15:00:12) 
Under Decimal Digit Determination (in Just Math) Posted on 20130824 (5 Comments) 
 much of a problem even with a computer by Charlie (20130824 16:38:26) 
Under FOUR SQUARES (in Numbers) Posted on 20130823 (1 Comments) 
 computerguided solution by Charlie (20130823 22:55:26) 
Under Z for Zero, X for siX (in Just Math) Posted on 20130822 (4 Comments) 
 computer method by Charlie (20130822 16:10:47) 
Under Temperature Temperament III (in Weights and Scales) Posted on 20130821 (1 Comments) 
 computer solutions for 15 pourings or fewer by Charlie (20130822 02:02:01) 
Under Covert Quantity II (in Logic) Posted on 20130820 (3 Comments) 
 computer solution by Charlie (20130820 14:40:20) 
Under Tread Ware (in General) Posted on 20130820 (4 Comments) 
 evolution of a solution by Charlie (20130820 12:18:29) 
Under Block Positions (in Logic) Posted on 20130819 (1 Comments) 
 computer solution by Charlie (20130819 19:34:12) 
Under Walking the Blank (in Probability) Posted on 20130819 (4 Comments) 
 solution by Charlie (20130819 12:27:31) 
Under Random Queens (in Probability) Posted on 20130816 (1 Comments) 
 solution by Charlie (20130816 13:47:12) 
Under Pidigital primes (in Numbers) Posted on 20130815 (1 Comments) 
 computer solution by Charlie (20130815 19:26:45) 
Under NegaBinary Numbers (in Algorithms) Posted on 20130814 (2 Comments) 
 solution by Charlie (20130815 02:37:51) 
Under Sitting on the Fence (in Probability) Posted on 20130813 (5 Comments) 
 re(2): solution, different result by Charlie (20130813 13:54:51) 
Under Ten Items and Two Boxes (in Logic) Posted on 20130812 (2 Comments) 
 program generating the list by Charlie (20130813 01:54:34) 
 solution by Charlie (20130813 01:52:49) 
Under Seven  with and without (in Numbers) Posted on 20130809 (6 Comments) 
 solution by Charlie (20130809 12:53:08) 
Under The Far Sides (in Numbers) Posted on 20130808 (1 Comments) 
 If... by Charlie (20130808 16:09:25) 
Under Geometric Sequence Settlement (in Sequences) Posted on 20130807 (4 Comments) 
 expanded list; no proof of completeness by Charlie (20130807 12:45:22) 
 computer partial solution by Charlie (20130807 12:28:09) 
Under Telly's calendar (in Shapes) Posted on 20130806 (5 Comments) 
 re: Computer aided  all solutions. by Charlie (20130923 12:26:21) 
 Solution by Charlie (20130806 13:59:23) 
Under The bottom line (in Logic) Posted on 20130805 (2 Comments) 
 computerassisted solution by Charlie (20130805 21:23:51) 
Under Round Results (in Numbers) Posted on 20130805 (4 Comments) 
 re: a few more by Charlie (20130805 22:17:25) 
 computer solution by Charlie (20130805 13:36:27) 
Under Testy Triplet Treat (in Just Math) Posted on 20130804 (7 Comments) 
 re(2): results so far, but no proof in sight by Charlie (20130806 10:07:34) 
 re: results so far, but no proof in sight by Charlie (20130805 09:50:41) 
 re: results so far, but no proof in sight by Charlie (20130804 12:55:17) 
 results so far, but no proof in sight by Charlie (20130804 12:53:46) 
Under Dayknights and nightknights 6 (in Logic) Posted on 20130802 (5 Comments) 
 re: answer by Charlie (20130802 13:28:26) 
Under Near Pythagoras (in Just Math) Posted on 20130731 (4 Comments) 
 re(2): computer solution by Charlie (20130801 09:41:59) 
 computer solution by Charlie (20130731 18:13:43) 
Under Pocket Change (in Just Math) Posted on 20130730 (5 Comments) 
 re: computer solution  the program by Charlie (20130730 16:24:39) 
 computer solution by Charlie (20130730 16:23:03) 
 re: Solution by Charlie (20130730 16:17:16) 
Under Maximizing sum (in Numbers) Posted on 20130729 (1 Comments) 
 computer assisted solution by Charlie (20130729 17:36:08) 
Under Grid Look (in Sequences) Posted on 20130729 (1 Comments) 
 solution by Charlie (20130729 17:16:12) 
Under Squarely Sorted (in Numbers) Posted on 20130727 (4 Comments) 
 even more generally by Charlie (20130728 09:34:33) 
 more generally by Charlie (20130727 15:49:06) 
Under AMY and ANN (in General) Posted on 20130726 (5 Comments) 
 re(2): Correction (PARTIAL SOLUTION) by Charlie (20130728 14:49:42) 
Under Casting Out Zeros (in Just Math) Posted on 20130725 (4 Comments) 
 re: good for 11 thru 999 by Charlie (20130726 13:09:00) 
 good for 11 thru 999 by Charlie (20130726 13:05:20) 
 re: Godel strikes again  31 and 33 by Charlie (20130726 09:53:15) 
Under Weighted Quadrilateral (in Geometry) Posted on 20130725 (1 Comments) 
 computer solution by Charlie (20130725 15:57:08) 
Under Faulty Card Shuffler (in General) Posted on 20130724 (10 Comments) 
 re: ? Solution for any set of subcycles? by Charlie (20130729 10:05:25) 
Under Repunits and bases (in Numbers) Posted on 20130724 (6 Comments) 
 re: Answer: by Charlie (20130724 12:42:29) 
 computer solution by Charlie (20130724 12:40:09) 
Under Locker Unlock (in Just Math) Posted on 20130723 (4 Comments) 
 re: opening combination by Charlie (20130723 12:22:02) 
 computer solution by Charlie (20130723 12:21:01) 
Under Square Tetrahedral Dice (in Just Math) Posted on 20130722 (1 Comments) 
 computer solution by Charlie (20130722 18:37:13) 
Under Equal Vision (in Logic) Posted on 20130722 (1 Comments) 
 computer solution by Charlie (20130722 13:31:34) 
Under Patchy Problem (in Logic) Posted on 20130719 (1 Comments) 
 computer solution by Charlie (20130719 13:15:28) 
Under Only one untrue statement (in Logic) Posted on 20130718 (10 Comments) 
 re(3): Spoiler by Charlie (20130720 09:46:02) 
 re: Spoiler by Charlie (20130718 11:12:36) 
Under Table Tennis Serve (in Just Math) Posted on 20130717 (6 Comments) 
 re: possible outcome by Charlie (20130717 12:51:39) 
 solution by Charlie (20130717 12:45:38) 
Under Taking the Long Shot (in Probability) Posted on 20130716 (3 Comments) 
 solution by Charlie (20130716 17:32:16) 
Under S.o.d. classification (in Just Math) Posted on 20130715 (1 Comments) 
 computer solution (spoiler) by Charlie (20130715 18:40:55) 
Under Upside Down LCD Display (in Numbers) Posted on 20130715 (2 Comments) 
 solution (spoiler) by Charlie (20130715 12:52:44) 
Under Circles & Parabola (in Calculus) Posted on 20130713 (5 Comments) 
 computer approximation by Charlie (20130713 17:07:42) 
