Rubik's

Rubik's Cube is a mechanical puzzle invented in 1974 by the Hungarian sculptor and professor of architecture Ernő Rubik. more...

It is a plastic cube which comes in four different versions: the 2×2×2 ("Pocket Cube"), the 3×3×3, the 4×4×4 ("Rubik's Revenge"), and the 5×5×5 ("Professor's Cube"). The 3×3×3 version has nine square faces on each side, for a total area of fifty-four faces, and occupies the volume of twenty-seven unit cubes. Typically, the faces of the cube are covered by stickers in six colours, one for each side of the cube. When the puzzle is solved, each side of the cube is a solid colour. The original 3x3x3 version celebrated its twenty-fifth anniversary in 2005, and a special edition cube in a presentation box was released. The anniversary edition cube had a central white sticker with a specially designed "Rubik's Cube 1980-2005" logo.

Originally known as the Magic Cube, it was remanufactured and renamed Rubik's Cube in 1980 and released in May of that year. It is said to be the world's biggest selling toy, with some three hundred million Rubik's Cubes and imitations sold worldwide.

History

Conception and development

The Magic Cube was invented in 1974 by Ernő Rubik, a Hungarian sculptor and professor of architecture with an interest in geometry and the study of three dimensional forms. Ernő obtained Hungarian patent HU170062 for the Magic Cube in 1975 but did not take out international patents. The first test batches of the product were produced in late 1977 and released to Budapest toy shops.

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