> Mathematicians vied to find the shortest method of unscrambling, which became known as God's algorithm. There's speculation that an all-knowing being could restore any Cube in 22 moves, but the shortest method discovered so far requires 52. It was found by a British mathematician named Morwen B. Thistlewaite.

In 2010 it was finally proven that 20 moves is enough to solve any possible Rubik's cube ordering, and that it can be no lower.