December 18, 2019 Add as a preferred source on Google Add as a preferred source on Google A Rubik’s Cube or “magic cube” can be configured over 43 quintillion ways, and every configuration can ...

Mathematicians and hobbyists have had a half-century of fun exploring the 43 billion billion permutations of Erno Rubik’s creation. “My method was understanding,” Erno Rubik said of the iconic twisty ...