Rubik’s Cube Proof Cut to 25 moves

It still amazes me how the ingenious Rubik’s Cube puzzle (invented in the 1970’s) still provides such a good basis for some of the world’s most intriguing mathematical research.

It only took a computer with 8GB of memory and a 1.6GHz processor around 1500 hours of time to prove that a scrambled Rubik’s Cure can be solved in just 25 moves.

Source: SlashDot

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