Under Cutting the Card (in Shapes) Posted on 2009-09-16 (3 Comments) |
Under Roman Square (in Numbers) Posted on 2009-05-13 (4 Comments) |
Under Random chord problem (in Geometry) Posted on 2009-05-11 (17 Comments) |
Under Millionth Pandigital (in Numbers) Posted on 2009-04-17 (3 Comments) |
Under Digits 1-7 (in Just Math) Posted on 2009-03-30 (6 Comments) |
Under Sixteen Cards (in Logic) Posted on 2009-02-27 (2 Comments) |
Under Truncated Cube (in Shapes) Posted on 2008-02-14 (11 Comments) |
Under Snow Splash (in Shapes) Posted on 2005-05-15 (8 Comments) |