<< Previous Article |
Next Article >> |

Posted on July 24, 2015 Congruent Rectangles Puzzle (trig solution) A trigonometric solution to last weeks geometry puzzle. | Posted on April 19, 2022 Mathematician`s Card Trick Guessing from three boxes in one try. | Posted on May 13, 2015 PoincarĂ© conjecture PoincarĂ© conjecture, Topology, million dollar prize and pretty pictures. | Posted on November 30, 2020 Gender Identification Puzzle [Update] A solution with lower expected value. |