Under Slow Cows (in General) Posted on 2013-10-28 (4 Comments) |

| A joke by Tristan (2013-10-28 23:55:16) |

Under Take the right one (in Weights and Scales) Posted on 2013-10-18 (18 Comments) |

| re: question for Tristan by Tristan (2013-10-20 00:37:09) |

| 99 coins by Tristan (2013-10-19 13:26:21) |

| Solution by Tristan (2013-10-19 13:20:04) |

| re: Solution by Tristan (2013-10-19 03:38:57) |

Under Minimum Sum Muse (in Just Math) Posted on 2013-10-16 (4 Comments) |

| A better answer by Tristan (2013-10-17 02:26:01) |

Under Tank draining (in Algorithms) Posted on 2013-10-14 (6 Comments) |

| re: More improvement by Tristan (2013-10-15 00:14:54) |

Under LCM by pairs (in Just Math) Posted on 2013-10-14 (4 Comments) |

| Analytical Solution by Tristan (2013-10-14 13:07:13) |

Under Feisty Fifty-six (in Just Math) Posted on 2013-10-04 (5 Comments) |

| solution by Tristan (2013-10-05 01:27:53) |

Under GCD to product (in Just Math) Posted on 2013-10-03 (4 Comments) |

| Small correction by Tristan (2013-10-03 22:42:14) |

Under SSS, SAS, ASA, and ... (in Geometry) Posted on 2013-10-02 (4 Comments) |

| re(2): First part of solution by Tristan (2013-10-05 01:03:52) |

| proof of lemma by Tristan (2013-10-03 06:04:31) |

| First part of solution by Tristan (2013-10-03 05:45:34) |

Under No Triple Repetitions (in Sequences) Posted on 2013-08-06 (1 Comments) |

| Proof by Tristan (2013-10-05 01:54:53) |

Under Fast clock, slow clock (in Riddles) Posted on 2007-04-11 (16 Comments) |

| Responses and hints by Tristan (2007-04-11 20:24:23) |

Under Another relativistic snapshot (in Science) Posted on 2007-03-07 (1 Comments) |

| hint by Tristan (2007-03-08 13:12:20) |

Under Torus paradox (in Paradoxes) Posted on 2007-01-02 (7 Comments) |

| re: solution by Tristan (2007-01-02 11:42:48) |

Under Six hundred coins (in Probability) Posted on 2006-12-22 (12 Comments) |

| Wrong by Tristan (2006-12-22 21:23:11) |

Under Row on Row (in General) Posted on 2006-12-11 (10 Comments) |

| Part 2 in 20 points by Tristan (2006-12-12 13:29:22) |

Under Fractional computation (in Algorithms) Posted on 2006-11-21 (7 Comments) |

| re: simplification of part 2 by Tristan (2006-11-22 04:09:47) |

Under Circular map (in Geometry) Posted on 2006-11-15 (29 Comments) |

| re(7): Full Proof by Tristan (2006-12-19 20:18:21) |

| re(2): Full Proof by Tristan (2006-12-17 00:20:28) |

| Full Proof by Tristan (2006-12-15 14:56:08) |

| re(3): Not a proof, but ... by Tristan (2006-11-24 02:07:22) |

| re: Not a proof, but ... by Tristan (2006-11-18 14:49:20) |

| re(2): Proof by Tristan (2006-11-17 15:34:33) |

| Proof by Tristan (2006-11-16 20:44:19) |

Under Button puzzle (2) (in General) Posted on 2006-10-27 (10 Comments) |

| re(3): Solution by Tristan (2006-11-05 19:08:33) |

| re: Flip by Tristan (2006-10-30 13:11:28) |

Under Super-smooth hump (in Calculus) Posted on 2006-10-24 (9 Comments) |

| re: My Way by Tristan (2006-10-25 21:06:24) |

| re(2): Solution by Tristan (2006-10-24 23:00:01) |

| Solution by Tristan (2006-10-24 17:38:50) |

Under No rows (in Games) Posted on 2006-10-24 (17 Comments) |

| clarification by Tristan (2006-10-24 17:19:22) |

Under Tree planting exercise (in Geometry) Posted on 2006-10-21 (10 Comments) |

| Part 2 by Tristan (2006-10-21 17:08:59) |

Under Faraday's experiment (in Science) Posted on 2006-10-20 (9 Comments) |

| Solution and thoughts by Tristan (2006-10-22 22:48:18) |

Under Shrink needed (in Algorithms) Posted on 2006-10-18 (26 Comments) |

| loopholes by Tristan (2006-10-22 17:22:30) |

Under Button puzzle (in General) Posted on 2006-10-13 (6 Comments) |

| re: Question / Clarification by Tristan (2006-10-13 13:54:27) |

Under The power of friction (in Science) Posted on 2006-09-26 (2 Comments) |

| The easy part by Tristan (2006-09-26 13:50:41) |

Under Commutative Group (in Just Math) Posted on 2006-09-18 (8 Comments) |

| re: Counting elements by Tristan (2006-09-19 14:59:20) |

Under Strange glasses (in Science) Posted on 2006-09-12 (8 Comments) |

| about by Tristan (2006-09-15 00:31:46) |

Under Freecell (in Just Math) Posted on 2006-09-06 (6 Comments) |

| re(3): Solution complications by Tristan (2006-09-11 15:17:00) |

| re: Solution by Tristan (2006-09-06 14:04:26) |

Under Six numbers and a prime (in Numbers) Posted on 2006-08-29 (23 Comments) |

| Proof by Tristan (2006-08-29 17:18:56) |

Under How to save yourself (in Logic) Posted on 2006-08-20 (18 Comments) |

| Solution by Tristan (2006-08-20 14:35:59) |

Under Various Valleys, More Mountains (in Shapes) Posted on 2006-07-26 (7 Comments) |

| Another thought by Tristan (2006-08-15 23:51:26) |

| Spoiler link by Tristan (2006-08-11 02:30:49) |

Under Covering a circle (extended mix) (in Shapes) Posted on 2006-06-20 (5 Comments) |

| re: Answers by Tristan (2006-06-20 18:32:29) |

Under Cherry picking (in Probability) Posted on 2006-06-17 (4 Comments) |

| Solution by Tristan (2006-06-17 10:51:16) |

Under Relativistic snapshot (in Science) Posted on 2006-05-26 (11 Comments) |

| re: false! by Tristan (2007-02-28 03:06:35) |

| re(3): Solution by Tristan (2006-06-04 09:29:42) |

| re: A Question by Tristan (2006-05-26 16:41:19) |

Under The Paradox of Relativity (in Science) Posted on 2006-05-24 (9 Comments) |

| re: Some thoughts by Tristan (2006-05-26 16:37:07) |

Under View from Perplexus Tower (in General) Posted on 2006-04-27 (9 Comments) |

| re: Interesting Variant Solution for 2 stories blocked, stories > 2 challenge by Tristan (2006-05-01 18:35:36) |

| re: Interesting variant of problem by Tristan (2006-04-27 21:56:49) |

Under A Composite Determination Problem (in Just Math) Posted on 2006-04-23 (14 Comments) |

| Solution by Tristan (2006-04-23 13:25:07) |

Under 3's & 7's (in Numbers) Posted on 2006-04-09 (13 Comments) |

| re: Solution (with some trial and error) by Tristan (2006-04-09 20:28:21) |

Under Two fours (or fewer?) (in Numbers) Posted on 2006-04-07 (15 Comments) |

| re: Solution to first part by Tristan (2006-04-07 22:59:59) |

Under Arrow dice 2 (in Shapes) Posted on 2006-04-06 (8 Comments) |

| re(4): the longest I've gotten by Tristan (2006-04-09 17:02:29) |

| re(4): the longest I've gotten by Tristan (2006-04-09 12:14:54) |

| re(2): the longest I've gotten by Tristan (2006-04-08 13:36:38) |

Under A One-Seventh Power Problem (in Numbers) Posted on 2006-04-05 (4 Comments) |

| Analytical solution by Tristan (2006-04-05 20:59:47) |

Under Wreck out! (in Algorithms) Posted on 2006-04-03 (6 Comments) |

| How I would do it by Tristan (2006-04-04 02:01:26) |

Under Walking down an escalator (in General) Posted on 2006-03-29 (10 Comments) |

| Algebraic solution (spoiler) by Tristan (2006-03-29 20:37:17) |

Under Rotating slopes (in Just Math) Posted on 2006-03-21 (5 Comments) |

| simple solution by Tristan (2006-03-21 19:25:34) |

Under 3D Sudoku - Part II (in Numbers) Posted on 2006-03-17 (6 Comments) |

| re(3): Solution by Tristan (2006-03-18 17:50:29) |

| re: Solution by Tristan (2006-03-18 00:04:07) |

Under Semi-Minimalist Painting (in Logic) Posted on 2006-03-13 (10 Comments) |

| Where is this from? by Tristan (2006-03-14 20:46:01) |

Under what a lovely View... (in Cryptography) Posted on 2006-03-12 (24 Comments) |

| Solution by Tristan (2006-03-13 19:54:41) |

Under 3D Sudoku - Part I (in Numbers) Posted on 2006-03-06 (10 Comments) |

| re: Did anyone notice... by Tristan (2006-03-08 00:54:31) |

Under Black and White Solids (in Geometry) Posted on 2006-03-04 (11 Comments) |

| re: #2- octahedron by Tristan (2006-03-08 00:31:24) |

| re: # 1-4, possible errors by Tristan (2006-03-08 00:16:36) |

| # 1-4, possible errors by Tristan (2006-03-05 10:22:06) |

Under Two Armies (in Riddles) Posted on 2006-02-23 (17 Comments) |

| Wrong answer by Tristan (2006-02-23 19:59:45) |

Under Inversion Distance (in Geometry) Posted on 2006-02-21 (32 Comments) |

| Algebraic solution by Tristan (2006-02-22 21:58:05) |

Under Gross Division (in Numbers) Posted on 2006-02-20 (14 Comments) |

| Slightly improved by Tristan (2006-02-20 12:09:29) |

Under Splitting shapes (in Shapes) Posted on 2006-02-16 (9 Comments) |

| All but 5 by Tristan (2006-02-17 23:28:01) |

Under Hide and destroy (in Probability) Posted on 2006-02-15 (13 Comments) |

| re(2): Clarification, if you're lost by Tristan (2006-02-16 18:13:51) |

| Clarification, if you're lost by Tristan (2006-02-15 21:36:39) |

Under Expect the unexpected (in Paradoxes) Posted on 2006-02-15 (32 Comments) |

| expect... by Tristan (2006-02-15 21:18:48) |

Under Match The Years (in General) Posted on 2006-01-22 (16 Comments) |

| re(2): Analytical solution by Tristan (2006-01-23 15:08:53) |

| Analytical solution by Tristan (2006-01-22 15:43:38) |

Under Crossed sums (in Just Math) Posted on 2006-01-12 (12 Comments) |

| re: NOT ONE, BUT TWO TYPOS. by Tristan (2006-01-12 21:02:25) |

Under Entangled code (in Cryptography) Posted on 2005-12-25 (21 Comments) |

| re: significant others by Tristan (2006-03-12 20:04:41) |

| re: Solution, or most of one by Tristan (2006-01-10 02:51:57) |

| Bigger hints by Tristan (2006-01-09 20:26:02) |

| re: Not many hints by Tristan (2006-01-01 18:00:46) |

| re: Not many hints by Tristan (2005-12-29 18:02:14) |

| Hint 2 by Tristan (2005-12-28 00:29:54) |

| small hint by Tristan (2005-12-26 15:55:58) |

Under Twisted regions (in General) Posted on 2005-12-22 (9 Comments) |

| re: One solution (link to solution). by Tristan (2005-12-22 21:52:23) |

Under Three women, three numbers (in Logic) Posted on 2005-12-15 (27 Comments) |

| Systematic solution by Tristan (2005-12-15 21:28:03) |

Under Hymn Numbers (in Numbers) Posted on 2005-12-07 (6 Comments) |

| more efficient by Tristan (2005-12-08 18:23:51) |

Under Solid triangles (2) (in Shapes) Posted on 2005-12-05 (7 Comments) |

| re: part 1 spoiler by Tristan (2005-12-05 20:44:00) |

Under Add a third (in Word Problems) Posted on 2005-12-02 (23 Comments) |

| re: What I read about this problem once: by Tristan (2005-12-02 18:34:36) |

Under Easily distinguished codes (in Numbers) Posted on 2005-11-29 (11 Comments) |

| re(2): 3+ digits? by Tristan (2006-02-26 02:02:53) |

| 3+ digits? by Tristan (2006-02-02 19:22:51) |

| re: Clarification required by Tristan (2005-11-30 19:05:14) |

Under The prisoners and the beans (in Logic) Posted on 2005-11-27 (38 Comments) |

| My two cents by Tristan (2005-11-28 11:23:31) |

Under Reproduce this drawing (in General) Posted on 2005-11-25 (33 Comments) |

| re(2): Improved solution...is bogus by Tristan (2005-11-25 21:31:52) |

| Improved solution by Tristan (2005-11-25 20:51:11) |

Under Another Man's Floor (in Algorithms) Posted on 2005-11-23 (11 Comments) |

| re: Solution (part 1) by Tristan (2005-12-28 00:40:01) |

| Solution (part 1) by Tristan (2005-12-24 02:11:24) |

Under Polyomino Puzzle (in Shapes) Posted on 2005-11-22 (21 Comments) |

| Solution by Tristan (2006-01-29 23:38:55) |

Under Box bounce (in Geometry) Posted on 2005-11-17 (26 Comments) |

| re(8): weighing in | Hint by Tristan (2005-12-15 17:59:27) |

| re(5): weighing in on the gravity solution (full solution?) by Tristan (2005-11-22 18:51:21) |

| re(3): weighing in on the gravity solution (full solution?) by Tristan (2005-11-21 19:05:33) |

| re: weighing in on the gravity solution (full solution?) by Tristan (2005-11-18 23:11:54) |

| Add gravity... by Tristan (2005-11-17 19:54:03) |

Under Connect the planets (in General) Posted on 2005-11-16 (10 Comments) |

| re: No Subject by Tristan (2005-11-28 11:28:04) |

Under Rubik Cubed (in Games) Posted on 2005-11-14 (8 Comments) |

| re(2): Solution ---- just Paint by Tristan (2005-11-15 20:31:26) |

| Solution by Tristan (2005-11-14 20:04:11) |

Under 100 Chords (in Geometry) Posted on 2005-11-11 (10 Comments) |

| re: 100% Solution by Tristan (2005-11-15 20:34:45) |

Under Set of Spheres (in Geometry) Posted on 2005-11-03 (7 Comments) |

| my first thoughts by Tristan (2005-11-03 18:04:43) |

Under Dinner and Dialogue (in General) Posted on 2005-11-02 (9 Comments) |

| re: Least number of members ? by Tristan (2005-11-07 19:19:54) |

| re: Solution by Tristan (2005-11-05 01:36:54) |

| No Subject by Tristan (2005-11-03 17:47:50) |

Under Palindromic sequences (in Sequences) Posted on 2005-10-31 (16 Comments) |

| re(2): Spoiler by Tristan (2005-11-01 19:59:43) |

| Spoiler by Tristan (2005-10-31 21:03:56) |

| An idea by Tristan (2005-10-31 20:33:18) |

Under The undiscovered numbers (in Logic) Posted on 2005-10-29 (32 Comments) |

| re(2): General formula by Tristan (2005-11-05 01:56:04) |

| re(4): General formula by Tristan (2005-11-01 00:22:24) |

| re(2): General formula by Tristan (2005-10-31 21:22:43) |

| General formula by Tristan (2005-10-31 19:53:21) |

Under 2nd difference sequence (in Sequences) Posted on 2005-10-22 (11 Comments) |

| Independent solution by Tristan (2005-10-25 19:14:10) |

Under Centrifugal Balance II (in General) Posted on 2005-10-18 (30 Comments) |

| Interesting problem by Tristan (2006-02-03 21:26:57) |

Under Scratch a Home Run! (in Probability) Posted on 2005-10-18 (8 Comments) |

| Independent solution by Tristan (2005-10-18 20:03:51) |

Under Tiptoe through Time (in General) Posted on 2005-10-11 (7 Comments) |

| re: try this by Tristan (2005-10-12 04:20:36) |

Under Wrapping an Equilateral Triangle (in Geometry) Posted on 2005-10-10 (15 Comments) |

| re(6): my solution ( oops ) by Tristan (2005-10-14 22:01:04) |

| re(4): my solution ( oops ) by Tristan (2005-10-14 05:16:52) |

| re(2): my solution ( oops ) by Tristan (2005-10-13 23:26:53) |

| Solution, with visuals by Tristan (2005-10-12 16:41:42) |

| from what I can tell... by Tristan (2005-10-12 16:11:55) |

Under Prisoner's Dilemma (in Games) Posted on 2005-10-06 (11 Comments) |

| strategy analysis by Tristan (2005-10-07 01:40:21) |

Under Six Similar Words (in Word Problems) Posted on 2005-10-03 (5 Comments) |

| That property--found with help by Tristan (2005-10-04 06:42:47) |

Under Crossing the board (in General) Posted on 2005-09-30 (10 Comments) |

| Minimum solution by Tristan (2005-10-03 05:27:22) |

| Solution by Tristan (2005-10-03 05:09:01) |

Under Dividing Between the Lines (in Cryptography) Posted on 2005-09-29 (8 Comments) |

| I love it! (non-spoiler) by Tristan (2005-09-30 04:55:07) |

Under Self-Referential Numbers (in Numbers) Posted on 2005-09-23 (17 Comments) |

| Another computer program by Tristan (2005-09-24 21:13:16) |

Under Buddy System (in Just Math) Posted on 2005-09-22 (8 Comments) |

| Solution by Tristan (2005-09-22 23:15:14) |

Under Five Fives (in Numbers) Posted on 2005-09-18 (391 Comments) |

| Got 83 by Tristan (2005-09-20 04:33:57) |

Under Recursive Definition (in Numbers) Posted on 2005-09-09 (7 Comments) |

| re: But can I prove it? by Tristan (2005-09-10 04:33:17) |

Under A tribute to Clarice (in General) Posted on 2005-09-08 (21 Comments) |

| Solution by Tristan (2005-09-14 23:42:45) |

| hint? by Tristan (2005-09-13 05:36:04) |

| An approach by Tristan (2005-09-09 22:51:46) |

Under Remove a Square (in Shapes) Posted on 2005-09-06 (20 Comments) |

| re(2): Diagram Solution by Tristan (2005-09-07 23:57:55) |

Under Politically Correct Moduli (in Just Math) Posted on 2005-09-03 (11 Comments) |

| Proof by Tristan (2005-09-03 20:55:03) |

Under Linked rings (in Shapes) Posted on 2005-08-31 (8 Comments) |

| re: Question by Tristan (2005-09-06 23:51:57) |

Under Are we odd for liking this, too? (in Cryptography) Posted on 2005-08-30 (18 Comments) |

| re(2): Another Hint or the solution by Tristan (2006-02-07 20:35:24) |

| It seems so close... by Tristan (2005-09-15 22:27:59) |

| re: You didn´t answer me... by Tristan (2005-09-08 00:37:15) |

Under A quadrilateral query (in Geometry) Posted on 2005-08-29 (5 Comments) |

| Second half of solution by Tristan (2005-08-29 17:17:54) |

| First half of solution by Tristan (2005-08-29 16:59:37) |

Under A Matter of Perspective (in Geometry) Posted on 2005-08-27 (10 Comments) |

| Another similar solution by Tristan (2005-08-28 04:09:03) |

Under Solid triangles (in Shapes) Posted on 2005-08-26 (9 Comments) |

| re(3): part 2 -- spoiler by Tristan (2005-08-28 02:02:35) |

| re: part 2 -- spoiler by Tristan (2005-08-27 15:49:10) |

Under A score for everyone (in Riddles) Posted on 2005-08-26 (30 Comments) |

| re: A few ideas by Tristan (2005-08-26 04:54:31) |

Under Find a subset (in Just Math) Posted on 2005-08-24 (6 Comments) |

| re: Solution by Tristan (2005-08-26 09:22:15) |

Under The late eight sequences (in Sequences) Posted on 2005-08-19 (16 Comments) |

| re: Got it!!!!!! by Tristan (2005-08-30 15:54:06) |

| re: not sure where this goes, but... by Tristan (2005-08-29 16:14:51) |

| another hint by Tristan (2005-08-20 22:59:17) |

Under More Than 22! (in Just Math) Posted on 2005-08-18 (42 Comments) |

| Solution by Tristan (2005-08-19 07:55:22) |

Under Connecting dots (in General) Posted on 2005-08-14 (9 Comments) |

| 2 solutions? by Tristan (2005-08-16 02:38:00) |

Under This Tongue of Mine (in Riddles) Posted on 2005-08-05 (28 Comments) |

| Hmmm... by Tristan (2005-08-10 06:11:31) |

Under Et Tu, Brute? (in Sequences) Posted on 2005-08-02 (15 Comments) |

| tangential anecdote by Tristan (2005-08-10 05:51:35) |

Under What´s your score? (in Games) Posted on 2005-07-30 (39 Comments) |

| Looks like fun (3911) by Tristan (2005-08-10 05:08:12) |

Under Circular Fun (in Shapes) Posted on 2005-07-28 (18 Comments) |

| re(2): A triangle by Tristan (2005-11-23 17:55:05) |

Under Cutting Cubic Corners (in Geometry) Posted on 2005-07-27 (5 Comments) |

| Can't miss this one by Tristan (2005-08-10 04:39:15) |

Under Two rights out of 24 wrongs (in General) Posted on 2005-07-27 (11 Comments) |

| Even if one was right... by Tristan (2005-08-10 04:04:40) |

Under Lemonade (in Weights and Scales) Posted on 2005-07-26 (18 Comments) |

| re: Different from other solutions? by Tristan (2005-08-28 16:29:35) |

Under My favorite numbers (in Numbers) Posted on 2005-07-22 (13 Comments) |

| re: No Subject by Tristan (2005-07-22 04:02:59) |

Under Dishonest Strategy (in Probability) Posted on 2005-07-16 (18 Comments) |

| re: More - part 2 by Tristan (2005-08-10 06:22:16) |

| More response by Tristan (2005-07-22 21:14:22) |

| re(2): Response by Tristan (2005-07-20 05:17:46) |

| Response by Tristan (2005-07-19 23:27:35) |

Under Any order will do (in Numbers) Posted on 2005-07-12 (8 Comments) |

| Proof (spoiler) by Tristan (2005-07-12 23:05:07) |

Under Special Similar Set (in Weights and Scales) Posted on 2005-06-27 (11 Comments) |

| More Part 2 thoughts by Tristan (2005-06-27 23:32:55) |

Under Five People on Two Bridges (in Logic) Posted on 2005-06-25 (40 Comments) |

| re(3): Fastest solution yet? correct? by Tristan (2005-06-27 20:24:47) |

| Small request by Tristan (2005-06-25 23:00:12) |

| 1 less minute by Tristan (2005-06-25 22:52:53) |

Under Three Tests, Take Three! (in Weights and Scales) Posted on 2005-06-23 (14 Comments) |

| re: One Gold Ring by Tristan (2005-07-02 07:17:37) |

Under Marbles Bonanza II (in Just Math) Posted on 2005-06-21 (33 Comments) |

| re(9): uh oh, here I go again. by Tristan (2005-07-06 21:12:46) |

| re(7): uh oh, here I go again. by Tristan (2005-07-04 22:10:14) |

| re(5): uh oh, here I go again. by Tristan (2005-07-02 07:02:19) |

| re(5): uh oh, here I go again. by Tristan (2005-07-01 21:02:11) |

| re(3): uh oh, here I go again. by Tristan (2005-06-30 22:30:36) |

| re: uh oh, here I go again. by Tristan (2005-06-29 21:56:02) |

| re(7): No Subject by Tristan (2005-06-25 23:35:46) |

| re: Solution by Tristan (2005-06-23 15:00:42) |

Under Elemental game (in Probability) Posted on 2005-06-16 (17 Comments) |

| re: Compliments, and corrections by Tristan (2005-06-22 01:11:32) |

Under 2n+1 Statements (in Logic) Posted on 2005-06-13 (15 Comments) |

| re(2): Hypothesis by Tristan (2005-06-13 23:14:47) |

Under Sweet Sixteen (in Just Math) Posted on 2005-06-12 (11 Comments) |

| 15-piece counter-example by Tristan (2005-06-12 19:36:20) |

Under Fibonacci Lore (in Numbers) Posted on 2005-06-10 (14 Comments) |

| re(3): Proof--Quick fix by Tristan (2005-06-12 19:30:46) |

| re: Proof--Quick fix by Tristan (2005-06-11 21:33:01) |

| Proof by Tristan (2005-06-11 21:14:07) |

Under At the grocery store (in Probability) Posted on 2005-06-05 (4 Comments) |

| Another solution by Tristan (2005-06-05 19:30:30) |

Under Classic counterfeit coin problem (in Weights and Scales) Posted on 2005-06-04 (13 Comments) |

| re: Answer by Tristan (2005-06-04 23:04:11) |

Under Twenty metal blocks (in Weights and Scales) Posted on 2005-06-02 (18 Comments) |

| Similar solution by Tristan (2005-06-07 18:53:12) |

| re(6): between... by Tristan (2005-06-07 06:28:57) |

| re(4): between... by Tristan (2005-06-06 23:54:38) |

| First basic steps to optimization by Tristan (2005-06-03 21:53:08) |

Under The three conferences (in Just Math) Posted on 2005-05-11 (15 Comments) |

| re(2): Algebraic solution by Tristan (2005-05-13 22:40:24) |

| Algebraic solution by Tristan (2005-05-12 23:28:58) |

Under Polynomials (in Just Math) Posted on 2005-05-10 (6 Comments) |

| re: numerical answer, without explanation by Tristan (2005-05-10 21:46:04) |

Under Four switches (in General) Posted on 2005-05-09 (37 Comments) |

| Solution posted by Tristan (2006-03-12 20:26:03) |

| re(3): AAAAAAAAAAAAAAARGH! by Tristan (2006-01-24 13:33:17) |

| re: AAAAAAAAAAAAAAARGH! by Tristan (2006-01-24 03:23:20) |

| re: Rule Clarification, again by Tristan (2006-01-23 14:48:35) |

| re: Trying to build on the 3-switch solution... by Tristan (2006-01-20 01:51:06) |

| half-spoiler by Tristan (2005-11-25 22:02:23) |

| re: Model for 3 switch lamp by Tristan (2005-06-30 21:53:46) |

| re: solution for 3 and 4 switches problem by Tristan (2005-06-09 16:15:29) |

| re(3): Question by Tristan (2005-05-11 23:33:21) |

| re: Question by Tristan (2005-05-10 21:37:31) |

| I must confess... by Tristan (2005-05-09 23:53:18) |

Under Line up (in Games) Posted on 2005-05-06 (14 Comments) |

| re(2): N=4? probably not by Tristan (2005-05-14 01:47:54) |

| re: N=3? - Max reached by Tristan (2005-05-08 02:20:43) |

Under Make it solvable (in Numbers) Posted on 2005-05-05 (16 Comments) |

| re(2): Independent Solution by Tristan (2005-05-06 05:53:45) |

| Independent Solution by Tristan (2005-05-05 23:35:58) |

Under Mental Math Competition (in Algorithms) Posted on 2005-04-29 (7 Comments) |

| Thoughts on Oracle 2 by Tristan (2005-05-02 22:59:24) |

| A beginning by Tristan (2005-05-02 05:39:20) |

Under Pool Ball (in Games) Posted on 2005-04-28 (15 Comments) |

| Reasoned solution by Tristan (2005-04-29 16:07:02) |

Under 1000th digit (in Numbers) Posted on 2005-04-26 (30 Comments) |

| re: Solution [FK's] by Tristan (2005-04-28 06:44:16) |

Under Colorful Noise (in Cryptography) Posted on 2005-04-25 (17 Comments) |

| re: Solution by Tristan (2005-04-26 00:48:35) |

Under Dividing a donut (in Shapes) Posted on 2005-04-23 (34 Comments) |

| re: An idea -- solution? (don't know if maximum is achieved) by Tristan (2005-04-23 21:14:48) |

Under Ice Floating in Water (in Science) Posted on 2005-04-21 (31 Comments) |

| re: Sea water is not water by Tristan (2005-04-22 01:51:03) |

| Independent solution by Tristan (2005-04-22 01:28:27) |

Under Guess a number (in Algorithms) Posted on 2005-04-14 (19 Comments) |

| re(2): Unexpected solution by Tristan (2005-04-18 23:18:29) |

| Unexpected solution by Tristan (2005-04-15 22:48:02) |

| Beginning of a solution by Tristan (2005-04-14 23:26:22) |

Under Only One Hand (in Games) Posted on 2005-04-11 (31 Comments) |

| On the official solution by Tristan (2005-06-02 00:14:40) |

| re: Limits on possible solutions by Tristan (2005-04-14 21:53:45) |

| Limits on possible solutions by Tristan (2005-04-13 00:04:20) |

Under Essay Final (in General) Posted on 2005-04-08 (8 Comments) |

| re: Question turns up to be clear by Tristan (2005-04-15 05:07:09) |

| Small clarifications by Tristan (2005-04-14 05:32:52) |

Under Counting Sand (in Algorithms) Posted on 2005-04-07 (8 Comments) |

| Another similar method by Tristan (2005-04-07 22:40:25) |

Under Magic Keyring (in Sequences) Posted on 2005-03-28 (6 Comments) |

| Most of solution by Tristan (2005-03-28 20:18:36) |

Under Equivalent Equator Empirical Experience! (in Science) Posted on 2005-03-27 (12 Comments) |

| counter-counterargument by Tristan (2005-03-27 20:27:49) |

Under Face Your Opponent (in Tricks) Posted on 2005-03-22 (7 Comments) |

| re: spoiler ????? by Tristan (2005-03-23 00:08:08) |

Under Make it go! (in Science) Posted on 2005-03-18 (17 Comments) |

| First part by Tristan (2005-03-19 02:51:46) |

Under The logician's favorite game (in Logic) Posted on 2005-03-18 (27 Comments) |

| re: Proof: by Tristan (2005-04-16 04:54:50) |

| Unsolved still by Tristan (2005-04-15 02:39:05) |

| re: THE ANWSER... by Tristan (2005-04-08 22:06:55) |

| re(3): armando by Tristan (2005-03-22 23:57:47) |

| re: armando by Tristan (2005-03-22 00:53:33) |

| Keep on going by Tristan (2005-03-19 20:30:37) |

| re: Notes and Clarifications by Tristan (2005-03-19 02:21:48) |

Under Prime Perimeter (in Logic) Posted on 2005-03-11 (89 Comments) |

| re(4): Trying to solve this... by Tristan (2005-03-14 00:50:01) |

| re(2): Trying to solve this... by Tristan (2005-03-13 22:06:15) |

| re: Erick Please Clarify by Tristan (2005-03-13 02:10:23) |

| Trying to solve this... by Tristan (2005-03-13 01:50:45) |

Under Knight vs King and Mines (in Games) Posted on 2005-03-07 (15 Comments) |

| re(2): Complete solution by Tristan (2005-03-09 05:27:36) |

| Complete solution by Tristan (2005-03-08 01:10:01) |

Under 9! (in Just Math) Posted on 2005-02-28 (12 Comments) |

| Solution by Tristan (2005-02-28 23:52:03) |

Under Digit Counting (in Numbers) Posted on 2005-02-25 (2 Comments) |

| Solution by Tristan (2005-02-26 03:13:00) |

Under Hat Exchange (in Algorithms) Posted on 2005-02-24 (8 Comments) |

| Better Solution (spoiler) by Tristan (2005-02-26 03:01:46) |

Under Figure Eights (in General) Posted on 2005-02-15 (34 Comments) |

| re(11): I think it's... - Elaboration by Tristan (2005-02-19 17:28:58) |

| re(9): I think it's... - Elaboration by Tristan (2005-02-19 15:10:04) |

| re(7): I think it's... - Elaboration by Tristan (2005-02-19 03:22:30) |

| re(4): I think it's... by Tristan (2005-02-17 23:42:23) |

| re(2): I think it's... by Tristan (2005-02-17 03:15:00) |

| I think it's... by Tristan (2005-02-15 23:56:25) |

Under Random Check (in Algorithms) Posted on 2005-02-11 (11 Comments) |

| Possible solution by Tristan (2005-02-12 17:48:58) |

Under God and the Devil (in Games) Posted on 2005-02-08 (62 Comments) |

| Would this work? by Tristan (2005-02-09 03:20:01) |

Under Connect The Dots (in Geometry) Posted on 2005-02-06 (14 Comments) |

| going much further by Tristan (2005-02-06 17:43:25) |

Under A rainbow of haves and have-nots (in Word Problems) Posted on 2005-01-26 (14 Comments) |

| I have it not by Tristan (2005-01-26 15:32:55) |

Under The Rule of 72 (in Just Math) Posted on 2005-01-25 (6 Comments) |

| Further justification by Tristan (2005-01-25 19:45:13) |

Under Consecutive Primes (in Just Math) Posted on 2005-01-24 (6 Comments) |

| re: at least 3 by Tristan (2005-01-24 15:47:57) |

Under Noisy Code (in Cryptography) Posted on 2005-01-15 (17 Comments) |

| (: by Tristan (2005-01-15 19:53:32) |

Under Whadduzitdo? (in Algorithms) Posted on 2005-01-14 (9 Comments) |

| Independent Solution by Tristan (2005-01-14 23:00:39) |

Under Unequaled inequalities (in General) Posted on 2005-01-13 (10 Comments) |

| re(3): a start + Possible solution by Tristan (2005-01-14 01:56:09) |

Under Related numbers (in Numbers) Posted on 2005-01-05 (11 Comments) |

| re: comment by Tristan (2005-01-06 23:16:12) |

Under Box game (in Games) Posted on 2005-01-04 (31 Comments) |

| re: I surrender by Tristan (2005-03-23 00:50:51) |

| ...and going... by Tristan (2005-02-09 00:00:56) |

| Keep on going by Tristan (2005-01-11 05:07:51) |

| How to draw in a comment by Tristan (2005-01-05 01:42:57) |

| A goal to aim for by Tristan (2005-01-05 01:18:17) |

Under Bumper Cars (in Logic) Posted on 2004-12-30 (14 Comments) |

| thought by Tristan (2005-01-01 16:47:03) |

Under Guess my Number (in Logic) Posted on 2004-12-20 (32 Comments) |

| re(4): Independent solution by Tristan (2004-12-21 17:41:00) |

| re(2): Independent solution by Tristan (2004-12-21 05:41:02) |

| Independent solution by Tristan (2004-12-20 16:28:09) |

Under Sequence of Musical Tones (in Algorithms) Posted on 2004-12-14 (20 Comments) |

| re(3): Proof of Infinite Length by Tristan (2004-12-16 00:41:02) |

| re: Proof of Infinite Length by Tristan (2004-12-15 04:51:45) |

Under I'm a knight! Really! (in Liars and Knights) Posted on 2004-12-07 (18 Comments) |

| One last clarification by Tristan (2004-12-11 00:59:37) |

| re: Question by Tristan (2004-12-07 23:32:08) |

Under The Logician's Birthday (in Logic) Posted on 2004-11-17 (60 Comments) |

| re: how about this? --yet another... by Tristan (2004-11-19 02:51:27) |

Under Speaking Volumes (in Numbers) Posted on 2004-11-10 (18 Comments) |

| re(3): Solution (yes, too informal) by Tristan (2004-11-13 17:14:30) |

| re(3): Solution (???) by Tristan (2004-11-11 18:26:52) |

| re: Solution (yes, too informal) by Tristan (2004-11-10 18:46:06) |

Under Ordering Pairs (in Numbers) Posted on 2004-11-06 (10 Comments) |

| re(2): Spoiler by Tristan (2004-11-07 15:19:12) |

| Spoiler by Tristan (2004-11-06 18:54:36) |

Under Four Way Smarties (in General) Posted on 2004-11-05 (22 Comments) |

| re(3): My new solution (Takes from previous solution) by Tristan (2004-11-06 16:15:54) |

| re: My new solution (Takes from previous solution) by Tristan (2004-11-06 10:30:26) |

| re(4): Part B (Correction and Full Solutions--Possibly) by Tristan (2004-11-05 19:33:21) |

| Independent solution by Tristan (2004-11-05 19:23:28) |

Under On Tour (in Cryptography) Posted on 2004-11-03 (28 Comments) |

| solution by Tristan (2004-11-10 19:40:16) |

Under 2-way maze (in General) Posted on 2004-11-01 (20 Comments) |

| Important clarification by Tristan (2004-11-02 01:38:55) |

Under Three at a Time (in General) Posted on 2004-10-26 (23 Comments) |

| solution by Tristan (2004-10-28 00:36:27) |

Under Triangular Coordinates (in Numbers) Posted on 2004-10-26 (11 Comments) |

| What's this? by Tristan (2004-10-26 21:55:48) |

Under On The Edge (in Geometry) Posted on 2004-10-24 (7 Comments) |

| re: A quick guess by Tristan (2004-10-24 15:36:47) |

Under An 'Impossible' Solid (in Shapes) Posted on 2004-10-23 (25 Comments) |

| re(4): Finally, I see it. by Tristan (2004-11-18 01:29:23) |

| re(2): Solution - fixed by Tristan (2004-10-24 15:19:46) |

| re: Solution - flaw by Tristan (2004-10-23 22:29:10) |

| re: Possible solution by Tristan (2004-10-23 21:15:57) |

| Solution by Tristan (2004-10-23 21:01:13) |

Under Prime Time Revisited (in Just Math) Posted on 2004-10-22 (17 Comments) |

| re(4): Arithmetic progression by Tristan (2004-10-25 03:41:52) |

Under Who Stole the Birdseed? (in Logic) Posted on 2004-10-21 (132 Comments) |

| Yet another... by Tristan (2004-10-30 14:46:23) |

Under The Sum of the Parts Is Less Than And More Than the Parts (in Numbers) Posted on 2004-10-15 (11 Comments) |

| Practical use by Tristan (2004-10-16 00:57:38) |

Under Equiangular Hexagons (in Shapes) Posted on 2004-10-15 (8 Comments) |

| wierd analogy + solution by Tristan (2004-10-16 01:27:54) |

Under Shepherd's Puzzle (2) (in General) Posted on 2004-10-12 (30 Comments) |

| re: Solution by Tristan (2004-10-15 07:06:05) |

| Dimensional analysis by Tristan (2004-10-12 22:47:58) |

Under Zquare (in Shapes) Posted on 2004-10-10 (23 Comments) |

| re(2): Much better by Tristan (2004-10-11 03:36:19) |

| Much better by Tristan (2004-10-10 18:34:13) |

Under Your spelling is very bad (in Cryptography) Posted on 2004-10-07 (16 Comments) |

| missing... by Tristan (2004-10-10 19:24:54) |

Under A New Solid (in Shapes) Posted on 2004-10-05 (19 Comments) |

| Perhaps simpler calculations by Tristan (2004-10-05 18:56:19) |

Under Nice View (in Geometry) Posted on 2004-09-29 (7 Comments) |

| off on a tangent by Tristan (2004-09-29 18:55:00) |

Under FIGURE it out (2) (in General) Posted on 2004-09-25 (14 Comments) |

| re(2): might take a while... by Tristan (2004-09-26 18:41:23) |

| might take a while... by Tristan (2004-09-25 17:26:47) |

| Solution-part 1 by Tristan (2004-09-25 16:49:07) |

Under Get one half by squaring (in Just Math) Posted on 2004-09-20 (31 Comments) |

| 10 terms... by Tristan (2004-09-21 22:04:06) |

| infinite solution by Tristan (2004-09-21 00:52:58) |

Under Hawks and Doves (in Probability) Posted on 2004-09-13 (22 Comments) |

| comment on official solution by Tristan (2004-09-27 20:16:35) |

Under Harder Russian Roulette (in Probability) Posted on 2004-09-11 (20 Comments) |

| re: Doesn't matter by Tristan (2004-09-13 20:07:51) |

Under FIGURE it out ! (in General) Posted on 2004-09-10 (12 Comments) |

| re(2): My take - correction by Tristan (2004-09-10 23:44:31) |

| My take by Tristan (2004-09-10 20:44:12) |

Under Whodunit Part 4: Going Shopping (in Logic) Posted on 2004-09-09 (30 Comments) |

| re: New to site with solution question by Tristan (2004-09-25 12:20:35) |

Under Another last digit (in Numbers) Posted on 2004-09-07 (10 Comments) |

| Simpler yet! by Tristan (2004-09-07 18:02:52) |

Under Pairs of Socks (in Probability) Posted on 2004-09-01 (20 Comments) |

| reply to replies by Tristan (2004-09-02 18:42:30) |

| Solution to part 1 by Tristan (2004-09-01 17:45:48) |

Under Measure that angle II (in Geometry) Posted on 2004-09-01 (16 Comments) |

| Independent solution by Tristan (2004-09-01 17:36:08) |

Under Circle, Circle, Sphere! (in Geometry) Posted on 2004-08-26 (8 Comments) |

| solution by Tristan (2004-08-27 22:22:54) |

Under Unique Necklaces (in General) Posted on 2004-08-18 (15 Comments) |

| Solution using Polya's theory by Tristan (2004-09-30 18:44:14) |

Under Converging Circumference (in General) Posted on 2004-08-09 (4 Comments) |

| first steps by Tristan (2004-08-09 12:54:49) |

Under Six Cubes (in Geometry) Posted on 2004-08-08 (5 Comments) |

| Diagram by Tristan (2004-08-08 12:06:58) |

Under Waiting, waiting... (in Probability) Posted on 2004-08-07 (19 Comments) |

| Where I went wrong by Tristan (2004-08-07 12:35:59) |

| Slightly different solution by Tristan (2004-08-07 12:18:59) |

Under Cube Angle (in Geometry) Posted on 2004-08-04 (13 Comments) |

| Two solutions by Tristan (2004-08-05 13:47:52) |

Under tic-tac-toe (in Probability) Posted on 2004-07-30 (14 Comments) |

| re: order doesn't matter by Tristan (2004-07-30 21:47:14) |

Under Jack's Ladder (in Shapes) Posted on 2004-07-27 (22 Comments) |

| Good explanation by Tristan (2004-07-27 14:41:58) |

Under Unfolding cube (in Shapes) Posted on 2004-07-22 (8 Comments) |

| re: 4d??? by Tristan (2004-07-31 11:47:53) |

Under 10,000 (in Numbers) Posted on 2004-07-21 (10 Comments) |

| general solution by Tristan (2004-07-30 21:42:09) |

Under Four Corners (in Algorithms) Posted on 2004-07-17 (7 Comments) |

| Good start by Tristan (2004-07-17 13:31:26) |

Under Fibonacci sums (in Just Math) Posted on 2004-07-15 (13 Comments) |

| Part 1 solution + explanation by Tristan (2004-07-16 15:52:57) |

Under Mirror, Mirror on the wall (in Numbers) Posted on 2004-07-15 (9 Comments) |

| Solution by Tristan (2004-07-15 18:02:17) |

Under A Common Vertex (in Shapes) Posted on 2004-07-12 (18 Comments) |

| re(2): solution by Tristan (2004-07-12 20:25:53) |

Under Step Function (in Calculus) Posted on 2004-07-07 (7 Comments) |

| Solution by Tristan (2004-07-08 15:38:40) |

Under How often does he lie? (in Probability) Posted on 2004-07-02 (6 Comments) |

| A different take by Tristan (2004-07-02 15:37:22) |

Under Consecutive Integer Sums (in Numbers) Posted on 2004-06-28 (22 Comments) |

| re: Possible Solution by Tristan (2004-06-28 18:38:17) |

| Better... by Tristan (2004-06-28 18:13:13) |

Under Class Pass (in Probability) Posted on 2004-06-24 (15 Comments) |

| re: This is very difficult by Tristan (2004-06-24 16:41:45) |

Under Red, Blue, and Yellow in Teens (in Sequences) Posted on 2004-06-22 (5 Comments) |

| re: solution by Tristan (2004-06-22 19:40:41) |

Under Maze Master (in Algorithms) Posted on 2004-06-21 (12 Comments) |

| cool solution by Tristan (2004-06-21 15:51:06) |

Under Equilateral Triangle (in Geometry) Posted on 2004-06-20 (21 Comments) |

| Proof by Tristan (2004-06-20 15:52:09) |

Under Fenced In (in Geometry) Posted on 2004-06-18 (15 Comments) |

| solution? by Tristan (2004-06-18 10:07:26) |

Under Fibonaccian nines (in Just Math) Posted on 2004-06-15 (7 Comments) |

| patterns? by Tristan (2004-06-15 14:58:27) |

Under What's the difference between snowmen and snowwomen? (in Just Math) Posted on 2004-06-14 (16 Comments) |

| re(2): solution by Tristan (2004-06-14 13:56:51) |

Under The right pentagon (in Shapes) Posted on 2004-06-12 (11 Comments) |

| Solution by Tristan (2004-06-13 13:20:26) |

| Drawing by Tristan (2004-06-12 12:33:16) |

| re: C is 90 and concave? - yes by Tristan (2004-06-12 11:54:16) |

Under Bird on a Wire (in Just Math) Posted on 2004-06-07 (42 Comments) |

| (probably repetitive) 2 and 3 bird solution by Tristan (2004-06-07 19:20:11) |

Under The Tour (in General) Posted on 2004-06-04 (10 Comments) |

| re: Solution by Tristan (2004-06-05 12:56:55) |

Under Gloves (in Numbers) Posted on 2004-06-03 (30 Comments) |

| re: Shame on me!---29 pairs by Tristan (2004-06-04 20:42:08) |

| My opinion by Tristan (2004-06-03 20:18:22) |

Under More Bird Watching (in Tricks) Posted on 2004-06-02 (15 Comments) |

| re(4): Solution - Gamer's secret identity uncovered by Tristan (2004-06-03 20:29:10) |

Under Fraction Magic Square (in Numbers) Posted on 2004-05-22 (6 Comments) |

| A first solution by Tristan (2004-05-22 15:17:15) |

Under Perfect Shuffle (in General) Posted on 2004-05-19 (20 Comments) |

| Cycle Notation by Tristan (2005-03-23 00:33:01) |

Under Block Tour (in Tricks) Posted on 2004-05-19 (22 Comments) |

| Another... by Tristan (2004-05-19 22:18:25) |

Under Pythagorean Plus One (in Numbers) Posted on 2004-05-17 (20 Comments) |

| re: People seem to be wrong... by Tristan (2004-06-04 18:11:26) |

Under 3x3 sums (in Numbers) Posted on 2004-05-15 (11 Comments) |

| Rambling deductive proof by Tristan (2004-05-16 01:17:06) |

Under The White Knight who couldn't quite remember II (in Logic) Posted on 2004-05-12 (13 Comments) |

| Solution by Tristan (2004-05-12 19:35:40) |

Under Set problems (in Logic) Posted on 2004-05-12 (13 Comments) |

| Trying again... by Tristan (2004-10-13 02:22:09) |

| Oops... by Tristan (2004-05-15 10:56:22) |

| Complete Proof by Tristan (2004-05-14 17:08:37) |

| Half a proof by Tristan (2004-05-13 20:26:46) |

| re(2): not sure if i understood this correctly, but by Tristan (2004-05-12 19:49:43) |

Under Would you like to play a game? (in General) Posted on 2004-05-10 (13 Comments) |

| re: Is there any way...Yes by Tristan (2004-05-10 18:08:03) |

Under Who played first? (in Games) Posted on 2004-05-07 (26 Comments) |

| The true solution! by Tristan (2004-05-08 13:56:46) |

| first step or two by Tristan (2004-05-07 17:25:25) |

Under The grass is always greener... (in Paradoxes) Posted on 2004-05-06 (46 Comments) |

| My thoughts by Tristan (2006-10-13 14:35:30) |

| Mean-ing by Tristan (2004-05-07 22:37:42) |

Under Particle Acceleration (in General) Posted on 2004-05-06 (24 Comments) |

| My uninfluenced solution by Tristan (2004-05-07 23:16:25) |

Under A Square Punishment (in Just Math) Posted on 2004-05-02 (11 Comments) |

| Observation by Tristan (2005-05-24 23:35:38) |

| re: Solution by Tristan (2004-05-02 23:55:44) |

Under Stan's Cassette (in Shapes) Posted on 2004-04-27 (17 Comments) |

| Solution by Tristan (2004-04-27 19:33:05) |

Under Lords and Ladies (in Logic) Posted on 2004-04-25 (37 Comments) |

| Solution by Tristan (2004-04-25 12:01:33) |

Under I Got Your Number (in Numbers) Posted on 2004-04-18 (15 Comments) |

| re(5): Another non-trivial solution by Tristan (2004-04-20 20:00:34) |

| re(3): Another non-trivial solution by Tristan (2004-04-19 20:44:52) |

| Solution by Tristan (2004-04-18 12:01:19) |

Under The Central Cell (in Games) Posted on 2004-04-16 (11 Comments) |

| re: General counter-example by Tristan (2004-04-16 18:32:53) |

| General counter-example by Tristan (2004-04-16 17:47:12) |

Under Shortest Long Number (in Paradoxes) Posted on 2004-04-15 (49 Comments) |

| re(4): But can any set of positive integers exist without a least member? by Tristan (2004-04-15 21:21:44) |

Under What are you doing and where are you from? (in Word Problems) Posted on 2004-04-14 (40 Comments) |

| re(3): That's because you weren't looking hard enough. :-) by Tristan (2004-04-14 17:25:36) |

| re: That's because you weren't looking hard enough. :-) by Tristan (2004-04-14 14:53:48) |

| Guidelines by Tristan (2004-04-14 14:09:19) |

Under e7(20) n2(17) (in Cryptography) Posted on 2004-04-13 (31 Comments) |

| re: S7Y R8O O8N R8O E5M by Tristan (2004-04-16 23:12:52) |

| More hints, I say by Tristan (2004-04-15 21:48:31) |

Under A flat ball? (in Geometry) Posted on 2004-04-08 (24 Comments) |

| re(3): The 720 degree deficit by Tristan (2004-04-13 16:36:27) |

| re(2): The 720 degree deficit by Tristan (2004-04-12 10:32:31) |

Under The White Knight who couldn't quite remember (in Logic) Posted on 2004-04-06 (13 Comments) |

| re(3): Through the looking glass...... by Tristan (2004-04-07 15:35:46) |

Under A long camping trip (in General) Posted on 2004-04-06 (11 Comments) |

| re: Everyone's Solution is WRONG except mine by Tristan (2004-04-08 15:26:58) |

Under new operations (in Just Math) Posted on 2004-03-31 (14 Comments) |

| re(3): And $ Makes 30 ... ? by Tristan (2004-04-01 04:05:23) |

| re: And $ Makes 30 ... ? by Tristan (2004-03-31 18:33:18) |

Under Birthday Line (in Probability) Posted on 2004-03-29 (21 Comments) |

| re(2): Function by Tristan (2004-04-04 18:06:38) |

| Function by Tristan (2004-03-30 19:04:08) |

Under The Conversing Club 3 (in General) Posted on 2004-03-28 (62 Comments) |

| tired thoughts by Tristan (2004-03-30 01:50:42) |

Under Rickety Bridge (in Liars and Knights) Posted on 2004-03-26 (33 Comments) |

| re: maybe... by Tristan (2004-03-26 17:09:49) |

Under Poetry in motion (in Riddles) Posted on 2004-03-25 (151 Comments) |

| re: Who posts the official solutions ? by Tristan (2004-04-08 15:18:21) |

Under Chords and Chords (in Geometry) Posted on 2004-03-24 (23 Comments) |

| stumper by Tristan (2004-03-25 20:29:41) |

| Replies and thoughts by Tristan (2004-03-24 18:41:15) |

Under A square squared (in Shapes) Posted on 2004-03-20 (5 Comments) |

| re: you tell me what subject be by Tristan (2004-03-23 19:56:43) |

Under Words in Common 11 (in Word Problems) Posted on 2004-03-19 (17 Comments) |

| re: please clear this up by Tristan (2004-04-12 10:38:38) |

Under Spirit of '76 (in Just Math) Posted on 2004-03-14 (8 Comments) |

| maybe? by Tristan (2004-03-14 13:51:27) |

Under Cheap Charlie (in General) Posted on 2004-03-12 (17 Comments) |

| Mathy solution by Tristan (2004-03-14 15:09:17) |

Under Primal Magic Square (in General) Posted on 2004-03-09 (15 Comments) |

| Cheaty non-optimal solution by Tristan (2004-04-08 16:16:38) |

| re: lower square - failure by Tristan (2004-03-09 19:32:03) |

| lower square in progress... by Tristan (2004-03-09 19:18:05) |

Under Icin' the Tea (in Logic) Posted on 2004-03-09 (38 Comments) |

| re: solution by Tristan (2004-03-09 22:30:28) |

Under Next Numbers Please #2 (in Sequences) Posted on 2004-03-08 (8 Comments) |

| re: --- by Tristan (2004-03-09 19:01:06) |

Under XX (in Logic) Posted on 2004-03-07 (69 Comments) |

| Did you really solve it? by Tristan (2004-03-09 20:03:37) |

| I'm hungry by Tristan (2004-03-07 19:18:59) |

Under Knight's Tour (2) (in Games) Posted on 2004-03-06 (9 Comments) |

| more method by Tristan (2004-03-07 01:35:16) |

| re-entrant tour by Tristan (2004-03-07 00:05:46) |

Under Murder by Logic (in Logic) Posted on 2004-03-05 (23 Comments) |

| re: another solution I think... by Tristan (2004-06-24 18:20:27) |

Under Ten Colors (in General) Posted on 2004-03-05 (6 Comments) |

| loophole by Tristan (2004-03-05 17:28:12) |

Under What is quicker than the eye? (in Science) Posted on 2004-03-04 (14 Comments) |

| re: easy on the eye by Tristan (2004-03-05 17:43:32) |

Under Open By Majority (in General) Posted on 2004-03-03 (45 Comments) |

| re(2): Solution (Penny's) by Tristan (2004-03-03 20:26:49) |

Under e, i, and π (in Just Math) Posted on 2004-03-02 (12 Comments) |

| re: solution - text problems by Tristan (2004-03-02 20:14:10) |

Under N-Divisibility (in Numbers) Posted on 2004-02-29 (4 Comments) |

| solution by Tristan (2004-02-29 12:18:43) |

Under Like Clockwork (in Geometry) Posted on 2004-02-27 (29 Comments) |

| re(2): why calculus by Tristan (2004-03-03 20:05:41) |

Under Lead Floats (in Science) Posted on 2004-02-25 (33 Comments) |

| tolerable idea by Tristan (2004-02-26 18:37:31) |

Under Repeated addition (in Sequences) Posted on 2004-02-20 (14 Comments) |

| re: Solution by Tristan (2004-02-23 18:55:12) |

| encouragement by Tristan (2004-02-22 15:00:49) |

Under Power to the 2 (in Numbers) Posted on 2004-02-20 (10 Comments) |

| extraneous solutions by Tristan (2004-02-20 17:25:04) |

Under Total Toothpaste (in General) Posted on 2004-02-16 (5 Comments) |

| lol by Tristan (2004-02-16 14:21:41) |

Under Quotational Quandary (in Logic) Posted on 2004-02-16 (20 Comments) |

| re(2): thoughts what is d2? by Tristan (2004-02-17 18:19:40) |

| thoughts by Tristan (2004-02-16 14:10:14) |

Under Letters to numbers (in Cryptography) Posted on 2004-02-13 (35 Comments) |

| re: GOT IT !!!!!!!!! by Tristan (2004-02-15 19:15:22) |

| ??? by Tristan (2004-02-13 14:21:49) |

Under who will marry the princess (in Riddles) Posted on 2004-02-13 (95 Comments) |

| life-saving by Tristan (2004-02-15 19:24:29) |

Under Domino Chain (in Probability) Posted on 2004-02-11 (19 Comments) |

| solution? by Tristan (2004-02-11 23:53:25) |

Under Sphere Cube (in Geometry) Posted on 2004-02-09 (15 Comments) |

| re(2): another dimension by Tristan (2004-02-13 15:01:39) |

Under It's unsolvable! (in Liars and Knights) Posted on 2004-02-02 (23 Comments) |

| further clarification by Tristan (2004-03-21 12:20:32) |

| re: Solution by Tristan (2004-02-05 20:40:18) |

| re(6): Pointing out...Tristan?!? by Tristan (2004-02-04 18:37:31) |

| re(2): Pointing out... by Tristan (2004-02-03 19:29:50) |

| Pointing out... by Tristan (2004-02-03 18:01:11) |

Under Through the Looking Glass (in Science) Posted on 2004-01-29 (13 Comments) |

| One way to think about it by Tristan (2004-02-03 22:32:15) |

Under Game of luck (in Probability) Posted on 2004-01-27 (22 Comments) |

| Clarification by Tristan (2004-02-03 20:12:43) |

Under Attack! (in Games) Posted on 2004-01-17 (9 Comments) |

| One solution by Tristan (2004-01-17 16:38:40) |

Under Shakespeare's Numbers (in Cryptography) Posted on 2004-01-09 (6 Comments) |

| re: -more Shakespeare lines by Tristan (2004-01-09 19:44:44) |

Under ETW (in Word Problems) Posted on 2004-01-09 (9 Comments) |

| And the title... by Tristan (2004-01-09 19:49:20) |

Under Buying Chestnuts (in Tricks) Posted on 2004-01-05 (19 Comments) |

| possible tricks by Tristan (2004-01-05 20:14:34) |

Under Pack the Box (in Shapes) Posted on 2004-01-04 (6 Comments) |

| re: random related comment by Tristan (2004-01-04 17:02:32) |

Under Swap (in Algorithms) Posted on 2004-01-02 (11 Comments) |

| re: other solutions by Tristan (2004-01-02 20:25:50) |

Under Blindfolded (in Liars and Knights) Posted on 2003-12-30 (23 Comments) |

| solution and proof by Tristan (2003-12-30 19:58:03) |

| re: number of liars and knights by Tristan (2003-12-30 19:42:43) |

Under Simple Math? (in General) Posted on 2003-12-30 (12 Comments) |

| re: Null Author? by Tristan (2004-01-04 17:16:50) |

Under Numbers and Dots (in Numbers) Posted on 2003-12-24 (12 Comments) |

| This time I really got it by Tristan (2003-12-24 17:55:21) |

| Got it! by Tristan (2003-12-24 17:38:41) |

| even closer... by Tristan (2003-12-24 14:14:46) |

Under Two Encrypted Questions (in Cryptography) Posted on 2003-12-22 (4 Comments) |

| re: Hint by Tristan (2003-12-23 13:02:43) |

Under Non - Zero Digit (in Just Math) Posted on 2003-12-21 (11 Comments) |

| re(3): simple solution by Tristan (2003-12-23 12:53:20) |

| simple solution by Tristan (2003-12-22 01:51:56) |

Under The Tunnel (in Logic) Posted on 2003-12-16 (16 Comments) |

| re(3): A Variation: by Tristan (2003-12-17 18:58:13) |

Under Proof of Anything (in Logic) Posted on 2003-12-13 (44 Comments) |

| re(2): Partial disproof by Tristan (2003-12-18 22:51:38) |

| Partial disproof by Tristan (2003-12-17 19:27:29) |

Under Nothing but flowers (in Cryptography) Posted on 2003-12-12 (9 Comments) |

| Nice... by Tristan (2003-12-12 18:05:23) |

Under Lost the Key (in Logic) Posted on 2003-12-11 (18 Comments) |

| re(2): Solution by Tristan (2003-12-13 00:14:33) |

Under Shortest distance (in Shapes) Posted on 2003-12-10 (16 Comments) |

| simpler solution by Tristan (2003-12-10 19:49:17) |

Under I've a broken stick (in Probability) Posted on 2003-12-07 (26 Comments) |

| shorter solution by Tristan (2003-12-07 23:00:28) |

Under Squares and Cubes (in Numbers) Posted on 2003-12-06 (21 Comments) |

| re(3): And after that there's... by Tristan (2003-12-06 23:35:57) |

Under PGKKW XIMAF TNEGA NFYGZ TMUIV (in Cryptography) Posted on 2003-12-05 (20 Comments) |

| re(2): the actual decryption by Tristan (2003-12-10 19:24:34) |

| the actual decryption by Tristan (2003-12-09 20:19:57) |

| re(3): Solution by Tristan (2003-12-08 17:30:38) |

| hmm... by Tristan (2003-12-05 18:25:35) |

Under Piece o' Cake (in Geometry) Posted on 2003-12-04 (22 Comments) |

| re(3): define...-not so simple by Tristan (2003-12-13 00:58:27) |

| re(2): define... by Tristan (2003-12-11 00:58:19) |

| define... by Tristan (2003-12-06 12:23:58) |

Under What's for sale? (in Logic) Posted on 2003-11-30 (43 Comments) |

| re(2): Answer is obvious by Tristan (2003-12-02 23:16:18) |

Under Flawless Series? (in Sequences) Posted on 2003-11-29 (67 Comments) |

| Explain... by Tristan (2003-11-30 12:34:54) |

Under Relativistic bullet (in Science) Posted on 2003-11-28 (20 Comments) |

| relativity by Tristan (2003-11-29 14:55:36) |

Under Lovelorn Snail (in Riddles) Posted on 2003-11-27 (81 Comments) |

| re: Comments by Tristan (2003-11-27 13:43:25) |

Under The Powers that Be (in Just Math) Posted on 2003-11-25 (19 Comments) |

| re(4): solution by Tristan (2003-11-27 13:52:19) |

| re(2): solution by Tristan (2003-11-26 19:31:01) |

| re(3): example of said case by Tristan (2003-11-26 18:13:58) |

| re: example of said case by Tristan (2003-11-25 19:02:43) |

Under Lost my pointer! (in Algorithms) Posted on 2003-11-24 (16 Comments) |

| re: -Exactly! by Tristan (2003-11-24 18:57:41) |

Under Sides Of A Triangle (in Just Math) Posted on 2003-11-23 (14 Comments) |

| re: Solution by Tristan (2004-01-17 12:26:21) |

| re: Starters- self correction by Tristan (2003-11-23 12:36:11) |

| Starters by Tristan (2003-11-23 12:22:33) |

| re: arithmetic progression? by Tristan (2003-11-23 11:46:07) |

Under Cutting Corners (in Shapes) Posted on 2003-11-20 (16 Comments) |

| 2 solutions by Tristan (2003-11-20 20:22:08) |

Under Crypto-Phrase (in Just Math) Posted on 2003-11-20 (25 Comments) |

| re: Code Revealed.. by Tristan (2003-11-20 20:07:30) |

Under Three of a Kind (in Probability) Posted on 2003-11-19 (39 Comments) |

| thoughts by Tristan (2003-11-20 20:01:35) |

Under Three numbers (in Just Math) Posted on 2003-11-17 (21 Comments) |

| re: another solution by Tristan (2003-11-18 18:15:22) |

Under 50 - Digit Number (in Just Math) Posted on 2003-11-15 (39 Comments) |

| re(6): a little more straightforward by Tristan (2003-11-20 19:31:37) |

| re(3): a little more straightforward by Tristan (2003-11-19 19:06:25) |

| re: a little more straightforward by Tristan (2003-11-16 20:52:59) |

Under Not another one! (in Tricks) Posted on 2003-11-13 (26 Comments) |

| re: Very Simple Solution. by Tristan (2003-11-14 21:57:13) |

Under Magic Rods (in Logic) Posted on 2003-11-11 (13 Comments) |

| solution by Tristan (2003-11-11 18:59:48) |

Under This Way and That Way (in Numbers) Posted on 2003-11-09 (12 Comments) |

| re: a thought by Tristan (2003-11-09 17:37:38) |

Under Fishy business (in Tricks) Posted on 2003-11-08 (22 Comments) |

| re: uhh... by Tristan (2003-11-12 19:09:26) |

Under Girls Just Wanna Have Fun (in Logic) Posted on 2003-11-06 (37 Comments) |

| logic by Tristan (2003-11-08 12:45:36) |

| re: Solution with no proof by Tristan (2003-11-06 20:24:54) |

| re: Hint: by Tristan (2003-11-06 20:00:09) |

Under What does it mean? (in General) Posted on 2003-11-06 (10 Comments) |

| re: solution by Tristan (2003-11-06 18:29:06) |

Under Lights Out! (in General) Posted on 2003-11-02 (26 Comments) |

| re: Brute Force by Tristan (2003-11-03 18:58:17) |

| First steps to proof by Tristan (2003-11-02 15:56:24) |

Under Foreign Puppy (in Just Math) Posted on 2003-10-31 (8 Comments) |

| No Subject by Tristan (2003-10-31 16:42:41) |

Under On the house? (in Paradoxes) Posted on 2003-10-31 (25 Comments) |

| Loser by Tristan (2003-11-02 16:11:16) |

Under Tiger - Man (in General) Posted on 2003-10-29 (15 Comments) |

| re: Specifically... by Tristan (2003-10-29 19:44:34) |

Under Blargs, Grots and Cloystas (in Liars and Knights) Posted on 2003-10-28 (26 Comments) |

| re: Brute force by Tristan (2003-10-28 18:57:33) |

Under Lotsa Sequences! (in Sequences) Posted on 2003-10-26 (6 Comments) |

| similar sequence by Tristan (2003-10-26 10:20:44) |

Under Don't touch! (in Tricks) Posted on 2003-10-24 (27 Comments) |

| re: don't touch the sides by Tristan (2003-10-24 23:50:02) |

| don't touch the sides by Tristan (2003-10-24 23:47:30) |

| re(2): the middle cube by Tristan (2003-10-24 17:42:37) |

| the middle cube by Tristan (2003-10-24 17:15:18) |

Under Strange Series (in Sequences) Posted on 2003-10-23 (11 Comments) |

| re: series idea.. by Tristan (2003-10-23 20:34:11) |

Under Twin Trouble (in Just Math) Posted on 2003-10-21 (14 Comments) |

| re: Solution by Tristan (2003-10-27 18:41:16) |

Under Four Tangent Circles (in Shapes) Posted on 2003-10-20 (13 Comments) |

| re: solution by Tristan (2003-10-20 22:22:33) |

Under Square thinking (in Probability) Posted on 2003-10-19 (12 Comments) |

| re: Solution using graphical logic by Tristan (2003-10-19 19:29:02) |

Under Cigarette Bar Bet (in Science) Posted on 2003-10-15 (82 Comments) |

| re(3): SOUND¿ by Tristan (2003-12-09 19:11:21) |

| re: might it be? by Tristan (2003-10-16 18:22:05) |

| re(4): Possible? by Tristan (2003-10-15 18:39:57) |

Under Penny Problem (in Logic) Posted on 2003-10-14 (18 Comments) |

| Praise by Tristan (2005-06-27 20:21:34) |

Under Strike a Chord (..Any Chord) (in Geometry) Posted on 2003-10-09 (51 Comments) |

| No solution by Tristan (2003-10-09 18:38:29) |

Under Slash and Dash II (in General) Posted on 2003-10-08 (15 Comments) |

| A trend by Tristan (2003-10-08 21:18:22) |

Under Check Mate (in Numbers) Posted on 2003-10-06 (12 Comments) |

| Solution by Tristan (2003-10-06 13:49:56) |

Under Centrifugal Balance (in Shapes) Posted on 2003-10-04 (12 Comments) |

| re: Are biochemist really that smart?. by Tristan (2005-04-14 22:02:56) |

Under Line Drive (in Sequences) Posted on 2003-10-03 (19 Comments) |

| Aha! by Tristan (2003-10-08 23:27:41) |

| partial solution to second sequence by Tristan (2003-10-08 21:38:09) |

| re(2): probably not a solution (you never know!) by Tristan (2003-10-06 13:35:21) |

| more ideas by Tristan (2003-10-05 15:23:12) |

| re: Possible Solution to first sequence by Tristan (2003-10-04 10:18:52) |

| Line Drive by Tristan (2003-10-03 17:39:36) |

Under Words in Common 7 (in Word Problems) Posted on 2003-09-30 (16 Comments) |

| coincidence? by Tristan (2003-09-30 18:56:55) |

Under The Kind Grandparents (in Just Math) Posted on 2003-09-30 (17 Comments) |

| re(4): solution - I see by Tristan (2003-10-01 18:54:19) |

| re: solution by Tristan (2003-09-30 18:47:34) |

Under Temperature Reflection (in Numbers) Posted on 2003-09-29 (10 Comments) |

| short solution by Tristan (2003-09-29 18:24:23) |

Under Landscape Architect (in Shapes) Posted on 2003-09-27 (9 Comments) |

| re: question by Tristan (2004-02-09 20:13:39) |

Under Simultaneous Equations (in Numbers) Posted on 2003-09-25 (17 Comments) |

| Solution by Tristan (2003-09-25 19:51:17) |

Under Japanese Numbering (in Numbers) Posted on 2003-09-21 (22 Comments) |

| re: solution by Tristan (2003-09-21 11:39:53) |

Under Master Number (in Games) Posted on 2003-09-20 (9 Comments) |

| Solution by Tristan (2003-09-20 12:04:59) |

Under print 'print 'print 'print ... (in Algorithms) Posted on 2003-09-19 (32 Comments) |

| creative solution by Tristan (2004-02-23 18:48:02) |

Under Not so triggy (in Word Problems) Posted on 2003-09-19 (18 Comments) |

| Good puzzle by Tristan (2003-09-22 19:50:18) |

| Solution? by Tristan (2003-09-22 19:44:11) |

| definition by Tristan (2003-09-21 11:02:01) |

Under Marbles Bonanza (in Paradoxes) Posted on 2003-09-08 (83 Comments) |

| re: The solution isn't... by Tristan (2005-06-22 01:03:08) |

Under Metaphysics.... (in Riddles) Posted on 2003-07-22 (45 Comments) |

| re: no duh its a -----!!!!!!!!!!!!!!!!!!!!!! by Tristan (2004-01-10 02:10:43) |

Under No,no,no (in Paradoxes) Posted on 2003-06-04 (53 Comments) |

| re: HERES ONE FOR YOU by Tristan (2003-12-11 20:59:54) |

Under Can Or Cannot (in Paradoxes) Posted on 2003-04-30 (109 Comments) |

| Interesting conclusion of Catholicism by Tristan (2004-12-11 00:45:14) |

| Logic by Tristan (2003-10-09 19:30:01) |

Under Making Dice, Part 2 (in Shapes) Posted on 2003-04-17 (9 Comments) |

| Solution by Tristan (2005-01-14 03:16:59) |

Under Gasoline Problem (in Weights and Scales) Posted on 2003-04-11 (36 Comments) |

| re: maybe this? input please. by Tristan (2005-05-12 00:01:23) |

Under Zeros And Ones (in Numbers) Posted on 2003-04-08 (22 Comments) |

| re: Wrong Official Solution by Tristan (2004-09-23 18:36:34) |

Under Mancala (in Games) Posted on 2003-01-21 (10 Comments) |

| re: There's an error in the solution by Tristan (2005-03-05 03:02:24) |

Under Crackers (in Cryptography) Posted on 2002-12-25 (6 Comments) |

| Solution by Tristan (2003-09-28 13:05:20) |

Under N-gonal numbers (in Just Math) Posted on 2002-11-30 (9 Comments) |

| (probably repetitive) solution by Tristan (2004-06-05 17:06:01) |

Under A locked safe (in Logic) Posted on 2002-07-16 (42 Comments) |

| Tackled by Tristan (2005-06-14 16:17:10) |

| I'll tackle this soon by Tristan (2005-06-14 01:46:50) |

Under Maze (in Probability) Posted on 2002-06-26 (53 Comments) |

| A thought by Tristan (2004-05-29 19:48:16) |

Under The party (in Logic) Posted on 2002-06-20 (14 Comments) |

| Different solution by Tristan (2005-07-02 23:55:05) |

Under Proof (in Just Math) Posted on 2002-05-29 (44 Comments) |

| re(3): solution is wrong by Tristan (2003-11-28 14:39:56) |

| re: solution is wrong by Tristan (2003-11-28 00:49:17) |

| more thoughts by Tristan (2003-11-16 15:47:57) |

| re: Ideas by Tristan (2003-11-15 10:29:59) |

| re(3): alternate proof by Tristan (2003-10-02 17:39:00) |

| alternate proof by Tristan (2003-10-01 21:10:08) |

Under An extra square (in Shapes) Posted on 2002-04-30 (15 Comments) |

| re: HOW DID YOU DO IT ? by Tristan (2005-03-10 23:20:00) |

Under A surprise exam (in Paradoxes) Posted on 2002-04-26 (39 Comments) |

| re: That cannot be. by Tristan (2003-11-12 19:20:34) |

Under Pick a box! (in Probability) Posted on 2002-03-28 (40 Comments) |

| Cool analogy by Tristan (2005-03-04 03:01:28) |

| re: Flat out wrong logic in solution. by Tristan (2005-03-03 22:20:52) |

| re(3): NO! 50/50! All possibilites shown! by Tristan (2005-03-02 23:31:06) |