Latest Rubik's Revenge Stories
Researchers have established the relationship between the number of squares in a Rubik's-cube-type puzzle and the maximum number of moves required to solve it.
The Rubik's Cube, invented by Erno Rubik, is a 3-D mechanical puzzle. In 1980 it was sold by Ideal Toys after winning the German Game of the Year special award. By January 2009 the puzzle had sold 350 million units making it the worlds top-selling puzzle game. The classic cube has six sides covered by nine stickers among six solid colors. Each face turns independently on a pivot mechanism which mixes the colors. To solve the puzzle the user had to make all the sides a solid color. Larry...
- an ornament or knob in the shape of a flower