On May 11th, 1997, IBM's Deep Blue supercomputer defeated reigning world chess champion Garry Kasparov in a six-game match. This victory marked the first time a machine had beaten a world champion in a full match under standard tournament time controls. The match was tied heading into the final game, but in a stunning 19-move collapse, Kasparov resigned after making a rare opening error in the Caro-Kann Defense, which Deep Blue ruthlessly exploited with a knight sacrifice. Despite Kasparov's demands for a rematch and his accusations of foul play, IBM immediately retired and dismantled the Deep Blue supercomputer, cementing the 3.5-2.5 score as the final word on the "man vs. machine" rivalry of the 1990s.
