Having children means being a puzzle-solver in ways big and small. By Samantha Mann Puzzling, to me, has always been an activity for people who lack legitimate hobbies. The thought of assembling 500 ...
6y
Any Rubik's Cube can be solved in 20 moves, but it took over 30 years for anyone to figure that out
In 2010, a group of mathematicians used a bank of supercomputers at Google to show any Rubik's Cube could be solved in 20 moves.
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