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Anonymous anime fan solves complex superpermutation puzzle on 4chan

Ellsworth Toohey
Mar 07, 2025
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The Melancholy of Haruhi Suzumiya

A mathematical puzzle solved by an anonymous anime fans has led to an unexpected breakthrough in combinatorial mathematics, starting with a simple question about binge-watching a 14-episode series in every possible order.

In 2011, an anonymous poster on the 4chan message board wondered about the most efficient way to watc…

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