A 2011 study in the journal Developmental Psychology found a link between playing with puzzles from an early age and better spatial skills. The idea is simple: the toy is a flat wooden tray with ...

A Japan-U.S. research team on March 10 offered a mathematical proof that "Dudeney's dissection," a challenge to cut an ...

In 1907, the English author and mathematician Henry Ernest Dudeney posed a puzzle: Can any equilateral triangle be cut into ...

If you've ever wished your favorite match-3 puzzle game was also a dating sim, Spirit Swap: Lofi Beats to Match-3 To is the highly specific game for you.

Henry Ernest Dudeney posed the famous dissection problem of transforming a triangle into a square by cutting it into as few ...

For this challenge you'll be presented with a sequence of different shapes. To solve the puzzle you will need to identify which missing shape completes the sequence. It may help to have a pencil ...