An anonymous reader writes: Only the most hardcore puzzle-solvers ever go beyond the standard 3x3x3 Rubik's cube, attempting much larger ones. Now an algorithm has been developed that can solve a Rubik's cube of any size. It might offer clues to humans trying to deal with these tricky beasts. Erik Demaine, a computer scientist at the Massachusetts Institute of Technology has found that the maximum number of moves that will ever be required for a cube of side n is proportional to n/log n. "It gives me a couple of ideas how to solve this thing faster," says Stewart Clark, a Rubik's cube enthusiast who owns an 11x11x11 cube.
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