Pim Niemeijer

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AI beats top human Stratego players for the first time

As of October 2026: Lost the 20-game series to Ataraxos, 15-1-4

An AI called Ataraxos beat the most decorated human Stratego player in history, four-time world champion Pim Niemeijer, by a margin of 15 wins, 1 loss, and 4 draws. It is the first superhuman result in the game's history, published September 30 in Nature.

Updated Oct 5