Editor’s note: This story originally appeared on The Washington Post’s Kids’ Post page of stories for young readers. WASHINGTON — If you’ve ever tried to solve a Rubik’s Cube (and, like most people, ...
In 2010, an international team of researchers proved that no matter how scrambled a Rubik’s cube got, it would require no more than 20 moves to solve it. Their proof, however, relied on the equivalent ...
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