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.
The Rubik's Cube, which is popular all over the world, is a three-dimensional puzzle that is so difficult that even beginners cannot match it. However, the world record for the fastest time to match ...
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