Deep Blue versus Garry Kasparov a draw by threefold repetition, starting with 50...Rd1+ and then 51...Rd2+. "May 11". Before the sixth game, the overall score was even: 2½–2½. As in game 4, Kasparov played the Caro–Kann Defence. Deep Blue made a daring knight sacrifice which wrecked Kasparov's defence and forced him to resign in less than twenty moves. Bibliography Deep Blue versus Garry Kasparov Deep Blue versus Garry Kasparov was a pair of six-game chess matches between world chess champion Garry Kasparov and an IBM supercomputer called Deep Blue. The first match was played in Philadelphia in 1996 and won by Kasparov. The second was
Game Over: Kasparov and the Machine into a perpetual check. The next three matches ended in draws, with Kasparov appearing to weaken psychologically. Deep Blue went on to win the decisive sixth game, marking the first time in history that a computer defeated the World Champion in a match of several games. From this experience, particularly the second game of the match, Kasparov accused the IBM team of cheating. He suspected that a human player was used during the games to improve the strategic strength of the computer. As a metaphor for this suspicion, the film weaves in the story of the Turk, a hoax involving