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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How to solve any Rubik’s Cube quickly

Military forces roll through Caracas for ‘Encounter With the People’ amid tension with US California bans masks on ICE officers as Newsom strikes back at Trump on deportations ‘Tidal wave of problems’ ...