New Delhi, May 19 (IANS): Search engine Google Monday celebrated the 40th anniversary of the popular Rubik's Cube puzzle that was invented by Hungarian Erno Rubik in 1974.
The Rubik's Cube comprises 26 cubes that rotate on a central axis and has nine coloured cube sides. The faces in the form of three rows and three columns make up each side of the cube.
When the cube is twisted on its axis, the player has to rearrange the small cubes so that the original configuration is attained.