Belfast Telegraph

Friday 25 July 2014

Google computer cracks Rubik’s Cube enigma

There are 43,252,003,274,489,856,000 different possible configurations on any Rubik's Cube — but researchers have calculated that you're never more than 20 moves away from solving the famous puzzle.

Using one of Google's supercomputers, an international team has confirmed that only 300m arrangements require a full 20 moves, with the majority of solutions taking between 15 and 19.

A good desktop computer would have taken 35 years to solve it, but Google's equipment took a few weeks.

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