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Rubik’s Cube

Rubik's Cube is a mechanical puzzle and 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, which is the version usually meant by the term "Rubik's Cube," has nine square faces on each side, for a total area of fifty-four faces, and occupies the volume of twenty-six unit cubes (not counting the invisible cube in the center). Typically, the faces of the Cube are covered by stickers in six solid colors, one for each side of the Cube. When the puzzle is solved, each side of the Cube is a solid color.

This is yet another Java implementation of the classical Rubik's Cube. I tried to make the user interface as simple and obvious as possible. You should be able to figure out how it works. Twist or rotate by pointing and dragging in "natural" directions.

Press s to scramble and r to restore (while positioning the mouse cursor somewhere in the applet region).

How to solve the Cube’s puzzle is a different story. Many general solutions for the Rubik's Cube have been discovered independently. The most popular method was developed by David Singmaster and published in the book Notes on Rubik's Magic Cube in 1980. This solution involves solving the Cube layer by layer, in which one layer, designated the top, is solved first, followed by the middle layer, and then the final and bottom layer. Other general solutions include "corners first" methods or combinations of several other methods. Try first to play the game and see if you can feel comfortable solving it without the help of a solution manual. Good luck!

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