On May 11, 1997, IBM's chess supercomputer Deep Blue won the final game of Garry Kasparov's rematch and became the first computer to defeat a world chess champion in a head-to-head match.This is not the first time that the Russian chess player has faced a computer. In 1989, Kasparov easily beat the chess computer Deep Thought with both suits in a two-game match.In February 1996, Kasparov lost a game against the IBM computer Deep Blue. In the following 5 games of the meeting, Kasparov achieved 3 wins and two tied results, and ended with a score of 4:2 in his favor.In May 1997, it lost a six-game public rematch 2.5:3.5 against IBM's improved computer Deep Blue. The match is tied until the fifth game, but in the sixth game the computer wins. This is the first time a computer has defeated a world champion in a head-to-head match. The documentary "Game Over: Kasparov and the Machine" was made about this famous fight.Kasparov claimed that several factors went against him in this encounter. In particular, he was denied access to previous Deep Blue meetings, while the computer team studied hundreds of Kasparov meetings.
