While solving the puzzle, the experts found out that a two-piece solution was not possible due to the problem’s constraints. To begin with, the triangle and square must have the same area since ...

The puzzle, which comes from a new book by London-based Alex Bellos, requires you to transform two triangles made from six matches into four triangles, by moving just two matches.

Henry Dudeney, a self-taught English mathematician and puzzle columnist, asked his readers to dissect an equilateral triangle into the smallest number of pieces that could be rearranged into a square.

Puzzle game Yankai's Triangle was named Apple's App of the Week, making it free to download for the next seven days. This is the first time the game has been made available for free since it was ...