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.

In graph theory, a graph is a network of lines, called edges, and points where they meet, called vertices. Century-old math puzzle. After 122 years, a team of mathematicians has finally solved the ...

A puzzle lover is selling his Bermuda Triangle Jigsaw Puzzles series because he is leaving the Island. Aardvark co-owner John Elsegood designed triangular puzzles, which depict the Dockyard Clock ...

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 ...

The 'how many triangles' puzzle which has recently surfaced is a case in point. It was shared by journalist Jitesh Pillai and took no time to baffle the masses.

We may earn a commission from links on this page. Yankai’s Triangles is a mobile puzzle game from the developer of Circa Infinity, and it makes me feel like I’m in hell. Right after the ...