Today in History
1996 – IBM supercomputer Deep Blue defeats Garry Kasparov in chess for the first time
Deep Blue, a chess-playing computer developed by IBM, was the first machine to win both a chess game and a chess match against a reigning world champion under regular time controls.
Development for Deep Blue began in 1985 with the ChipTest project at Carnegie Mellon University; Grandmaster Joel Benjamin was part of the development team. IBM hired the development team when the project was briefly given the name Deep Thought. In 1989 it was renamed Deep Blue.
Deep Blue won its first game against world champion Garry Kasparov in game one of a six-game match on this day in 1996. However, Kasparov won three and drew two of the following five games, defeating Deep Blue by a score of 4–2. Deep Blue was heavily upgraded before playing against Kasparov again in May 1997. Deep Blue won game six, thereby winning the six-game rematch 3½–2½ and becoming the first computer system to defeat a reigning world champion in a match under standard chess tournament time controls. However, Kasparov accused IBM of cheating.
-Wikipedia