Rubik's Cube

The Rubik's Cube is a mechanical puzzle invented by Hungarian sculptor and architecture professor Erno Rubik in 1974, originally designed as a teaching tool to illustrate movement in three-dimensional space. Each face of the cube must be restored to a single colour by manipulating its rotating rows, a challenge that became one of the best-selling puzzles in the world. The range now comes in several formats, from the classic 3x3 to the more complex 4x4.