rapture — With about 35 CPU-years of idle ...

rapture 19.02.2013 07:38 unknow

With about 35 CPU-years of idle computer time donated by Google, a team of researchers has essentially solved every position of the Rubik's Cube™, and shown that no position requires more than twenty moves. We consider any twist of any face to be one move (this is known as the half-turn metric.)
http://www.cube20.org/