 Under Lost Logarithm (in Just Math)
Posted on 2010-11-02 (3 Comments) |
 |  Solution by Robby Goetschalckx (2010-11-02 19:29:06) |
 Under Up and up (in Numbers)
Posted on 2010-05-04 (2 Comments) |
|  Solution by Robby Goetschalckx (2010-05-04 16:09:06) |
 Under Set of Primes (in Probability)
Posted on 2009-05-18 (6 Comments) |
| re(2): Solution by Robby Goetschalckx (2009-05-21 18:41:04) |
| re: solution by Robby Goetschalckx (2009-05-18 12:00:21) |
| Solution by Robby Goetschalckx (2009-05-18 11:56:53) |
Under Broken Keyboard (in Numbers)
Posted on 2009-04-06 (1 Comments) |
| Solution by Robby Goetschalckx (2009-04-06 14:55:43) |
Under Neighboring Multiples (in Numbers)
Posted on 2009-03-15 (2 Comments) |
| Computer solution by Robby Goetschalckx (2009-03-15 14:08:44) |
Under X-tracting a square root (in Numbers)
Posted on 2009-03-14 (1 Comments) |
| solution by Robby Goetschalckx (2009-03-14 14:46:18) |
Under Sequence with only 3 numbers (in Just Math)
Posted on 2009-03-07 (11 Comments) |
|  My solution by Robby Goetschalckx (2009-03-10 05:24:31) |
Under Two players, two pots (in Games)
Posted on 2009-02-21 (3 Comments) |
| re: almost complete solution by Robby Goetschalckx (2009-02-21 21:57:47) |
Under My Wonky CalcuLESS (in Logic)
Posted on 2009-02-18 (14 Comments) |
| re(8): problems with computer program by Robby Goetschalckx (2009-02-20 04:51:47) |
| re(4): problems with computer program by Robby Goetschalckx (2009-02-19 05:15:43) |
| re(2): problems with computer program by Robby Goetschalckx (2009-02-18 17:48:25) |
| re: problems with computer program by Robby Goetschalckx (2009-02-18 17:30:18) |
Under Lucky and Unlucky Numbers (in Liars and Knights)
Posted on 2009-02-01 (10 Comments) |
| Solution by Robby Goetschalckx (2009-02-01 14:27:18) |
Under Constructing a right triangle (in Geometry)
Posted on 2008-12-07 (6 Comments) |
| ascii art by Robby Goetschalckx (2008-12-09 07:19:27) |
| solution by Robby Goetschalckx (2008-12-07 16:22:20) |
Under Who committed the murder? (in Logic)
Posted on 2008-10-08 (8 Comments) |
| Solution by Robby Goetschalckx (2008-10-08 12:35:13) |
Under Students in a tournament (in Just Math)
Posted on 2008-09-05 (7 Comments) |
| Solution by Robby Goetschalckx (2008-09-05 12:37:38) |
Under The girls, the boxes and the balls (in Logic)
Posted on 2008-06-19 (11 Comments) |
| Solution by Robby Goetschalckx (2008-06-19 10:51:09) |
Under Four cars (in Just Math)
Posted on 2008-06-09 (7 Comments) |
| Geometric Solution by Robby Goetschalckx (2008-06-10 06:39:29) |
 Under All in the Family (in Paradoxes)
Posted on 2008-05-26 (10 Comments) |
| re(4): Full solution by Robby Goetschalckx (2008-05-27 09:08:44) |
Under Shape Invariant (in Shapes)
Posted on 2008-03-31 (2 Comments) |
| Solution by Robby Goetschalckx (2008-03-31 10:00:00) |
Under On a Grid (in Logic)
Posted on 2007-08-08 (7 Comments) |
| solution of first part by Robby Goetschalckx (2007-08-08 10:55:30) |
Under Exponentiate In Pairs, Get Numbers (in Just Math)
Posted on 2007-06-08 (6 Comments) |
| re(2): Cyclical by Robby Goetschalckx (2007-06-08 09:54:37) |
Under Non ordered field (in Just Math)
Posted on 2007-06-06 (2 Comments) |
| Solution by Robby Goetschalckx (2007-06-06 09:57:32) |
Under Counting the Types 2 (in Liars and Knights)
Posted on 2007-06-05 (6 Comments) |
| Solution by Robby Goetschalckx (2007-06-05 11:10:13) |
Under Only one, one, one (in Calculus)
Posted on 2007-05-30 (5 Comments) |
| re: not true by Robby Goetschalckx (2007-06-01 06:11:14) |
| solution by Robby Goetschalckx (2007-05-31 03:16:07) |
Under Bugs and Cubs (in Cryptography)
Posted on 2007-05-29 (13 Comments) |
| solution (computer aided) by Robby Goetschalckx (2007-05-29 12:11:10) |
Under Mean Sequence (in Sequences)
Posted on 2007-05-23 (7 Comments) |
| Proof by Robby Goetschalckx (2007-05-23 10:44:45) |
Under Soccer Stats (in Logic)
Posted on 2007-05-22 (9 Comments) |
| re(2): source of the problem by Robby Goetschalckx (2007-05-23 20:17:51) |
| source of the problem by Robby Goetschalckx (2007-05-23 10:46:38) |
Under A turtles' problem (in Tricks)
Posted on 2007-05-17 (16 Comments) |
| another try by Robby Goetschalckx (2007-05-18 05:31:31) |
| re(2): solution by Robby Goetschalckx (2007-05-18 05:17:01) |
| solution by Robby Goetschalckx (2007-05-17 10:26:14) |
Under Consider the expression, get zero remainder (in Just Math)
Posted on 2007-05-14 (2 Comments) |
| another way of getting there by Robby Goetschalckx (2007-05-14 20:00:52) |
Under Triangular Triples (in Numbers)
Posted on 2007-04-21 (7 Comments) |
| source by Robby Goetschalckx (2007-04-21 16:23:02) |
Under Bouncy ladybugs (in General)
Posted on 2006-12-05 (6 Comments) |
| spoiler, no explanation (yet) by Robby Goetschalckx (2006-12-05 08:52:47) |
Under The Fix Is In (in Just Math)
Posted on 2006-11-17 (12 Comments) |
| re: Silly corollary by Robby Goetschalckx (2006-11-19 20:47:50) |
Under Custom Dice (in Probability)
Posted on 2006-11-16 (6 Comments) |
| re: Solution by Robby Goetschalckx (2006-11-16 10:08:59) |
Under Prime Numbers in a Ten (in Numbers)
Posted on 2006-11-06 (7 Comments) |
| spoiler by Robby Goetschalckx (2006-11-06 08:22:12) |
Under More logicians, hats and numbers (in Logic)
Posted on 2006-11-05 (4 Comments) |
| Spoiler by Robby Goetschalckx (2006-11-05 19:22:30) |
Under Numbers of letters of numbers of letters of... (in Sequences)
Posted on 2006-09-10 (15 Comments) |
| Dutch by Robby Goetschalckx (2006-09-10 17:59:57) |
Under These are no fractions, are they? (in Numbers)
Posted on 2006-09-05 (15 Comments) |
|  solution for b ? by Robby Goetschalckx (2006-09-06 05:39:22) |
Under Summing or Multiplying (in Numbers)
Posted on 2006-08-21 (21 Comments) |
| re(3): Peculiars vs. Primes by Robby Goetschalckx (2006-08-23 05:14:50) |
Under Points on a plane (in Geometry)
Posted on 2006-08-18 (5 Comments) |
| re(2): How Leonhard would solve it by Robby Goetschalckx (2006-08-21 07:01:06) |
Under Find All Numbers (in Just Math)
Posted on 2006-07-25 (8 Comments) |
| re(2): Solution (using computer) by Robby Goetschalckx (2006-07-26 08:28:05) |
| Solution (using computer) by Robby Goetschalckx (2006-07-25 11:33:30) |
Under To qualify, or not to qualify (in General)
Posted on 2006-07-24 (6 Comments) |
| re(2): solution by Robby Goetschalckx (2006-07-25 06:29:56) |
| solution by Robby Goetschalckx (2006-07-24 09:29:19) |
Under Arcanum (in Riddles)
Posted on 2006-06-15 (16 Comments) |
| re(2): Is this it? -- spoiler by Robby Goetschalckx (2006-06-19 18:35:06) |
| re: Numbers don't lie, but they sure are magical... by Robby Goetschalckx (2006-06-16 04:10:29) |
Under Happy Birthday (3) (in Probability)
Posted on 2006-06-09 (13 Comments) |
| re: thoughts by Robby Goetschalckx (2006-06-09 08:02:39) |
Under Trading Places 2D (in Algorithms)
Posted on 2006-06-07 (3 Comments) |
| general solution by Robby Goetschalckx (2006-06-07 11:54:11) |
Under Who? (in Cryptography)
Posted on 2006-06-04 (7 Comments) |
| re(2): solution by Robby Goetschalckx (2006-06-05 07:25:19) |
| solution by Robby Goetschalckx (2006-06-04 17:24:20) |
 Under Pegless Painting Plummets! (2) (in General)
Posted on 2006-06-02 (7 Comments) |
| solution without string by Robby Goetschalckx (2006-06-09 04:39:40) |
Under One Native, Two Roads (in Liars and Knights)
Posted on 2006-05-22 (21 Comments) |
| single question by Robby Goetschalckx (2006-05-23 03:36:33) |
Under Game Over! (in Probability)
Posted on 2006-05-22 (15 Comments) |
| re(2): solution for question 2 by Robby Goetschalckx (2006-05-23 02:27:52) |
| solution for question 2 by Robby Goetschalckx (2006-05-22 12:32:42) |
| proof for question 1 by Robby Goetschalckx (2006-05-22 12:13:35) |
Under Either / Or (in Numbers)
Posted on 2006-05-13 (19 Comments) |
| re: 462 by Robby Goetschalckx (2006-05-15 07:12:23) |
Under Lim and Jill (in Riddles)
Posted on 2006-04-21 (12 Comments) |
| Solution ? by Robby Goetschalckx (2006-04-21 09:52:15) |
Under Wreck out! (in Algorithms)
Posted on 2006-04-03 (6 Comments) |
| Mathematical thoughts by Robby Goetschalckx (2006-04-04 04:03:08) |
Under No honor among thieves (in Liars and Knights)
Posted on 2006-01-08 (12 Comments) |
| Solution by Robby Goetschalckx (2006-01-09 05:36:47) |
Under ASKY? Code (in Cryptography)
Posted on 2005-09-27 (8 Comments) |
| No Subject by Robby Goetschalckx (2005-09-28 08:30:55) |
Under Shorten and halve (in Word Problems)
Posted on 2005-09-21 (33 Comments) |
| probably not correct by Robby Goetschalckx (2005-09-22 11:54:31) |
Under Linked rings (in Shapes)
Posted on 2005-08-31 (8 Comments) |
| re: Moebius strip -spoiler by Robby Goetschalckx (2005-08-31 09:31:10) |
| re(2): Solution by Robby Goetschalckx (2005-08-31 09:29:20) |
Under Are we odd for liking this? (in Cryptography)
Posted on 2005-06-09 (12 Comments) |
| re: thoughts (spoiler) by Robby Goetschalckx (2005-06-09 13:30:34) |
Under A question of primes (in Numbers)
Posted on 2005-06-08 (13 Comments) |
| full solution by Robby Goetschalckx (2005-06-08 14:00:19) |
Under What is the logical criterion ? (in Logic)
Posted on 2005-06-03 (9 Comments) |
| Solution by Robby Goetschalckx (2005-06-03 14:19:56) |
Under Reasonably Rational Sequence (in Sequences)
Posted on 2005-06-02 (6 Comments) |
| Solution by Robby Goetschalckx (2005-06-02 13:24:00) |
Under Southern Exposure (in Famous Riddles)
Posted on 2005-06-01 (47 Comments) |
| No Subject by Robby Goetschalckx (2005-06-01 12:20:12) |
Under Grows so slow... (in Sequences)
Posted on 2005-05-31 (13 Comments) |
| No Subject by Robby Goetschalckx (2005-06-01 12:17:39) |
Under 2005 a square? Baseless! (in Just Math)
Posted on 2005-05-30 (18 Comments) |
| re(2): Solution by Robby Goetschalckx (2005-06-01 07:52:01) |
| Solution by Robby Goetschalckx (2005-05-31 09:01:23) |
