One of Deep Blue's moves in the 1997 match may have been a glitch.

1997

In game one, the story goes, it could not pick a move and fell back on a fail-safe. Kasparov won that game but lost the match.

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The event

• Deep Blue defeats Kasparov1997 · New York. On 11 May 1997 IBM's Deep Blue beat world chess champion Garry Kasparov 3½–2½. It was the first time a computer defeated a reigning world champion in a match under classical time controls.

20th century

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