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Program Proves That Checkers, Perfectly Played, Is a No-Win Situation

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Science  20 Jul 2007:
Vol. 317, Issue 5836, pp. 308-309
DOI: 10.1126/science.317.5836.308a

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If two players face off at checkers and neither makes a wrong move, then the game will inevitably end in a draw. That's the result of a proof executed by hundreds of computers over nearly 2 decades and reported online by Science this week (