problem solving

How To Solve A Rubik’s Cube In Five Seconds

How To Solve A Rubik’s Cube In Five Seconds

The maximum number of face turns needed to solve the classic Rubik’s cube is 20, and the maximum number of quarter turns is 26. It took 30 years to discover these numbers, which were finally proved by Tomas Rokicki and Morley Davidson using a mixture of mathematics and computer calculation….