Human–computer chess matches Human–computer chess matches This article documents the progress of significant human–computer chess matches. Chess computers were first able to beat strong chess players in the late 1980s. Their most famous success was the victory of Deep Blue over then World Chess Champion Garry Kasparov in 1997, but there was some controversy over whether the match conditions favored the computer. In 2002–2003, three human-computer matches were drawn, but whereas Deep Blue was a specialized machine, these were chess programs running on commercially available computers. Chess programs running on commercially-available desktop computers had convincing victories against human players in matches in 2005
Computer chess able to draw matches against former world champion Garry Kasparov and classical world champion Vladimir Kramnik. In October 2002, Vladimir Kramnik and Deep Fritz competed in the eight-game Brains in Bahrain match, which ended in a draw. Kramnik won games 2 and 3 by "conventional" anti-computer tactics – play conservatively for a long-term advantage the computer is not able to see in its game tree search. Fritz, however, won game 5 after a severe blunder by Kramnik. Game 6 was described by the tournament commentators as "spectacular." Kramnik, in a better position in the early middlegame, tried a piece sacrifice