First Chess Engine that beat Garry Kasparov...........

Garry Kasparov is considered as one of the greatest chess player of all time.He is a Russian chess grandmaster, writer and polities activist.

Deep Blue was a chess-playing computer developed by IBM. It is known for being the first computer chess-playing system to win both a chess game and a chess match against a reigning world champion under regular time controls.
In may 1997, Deep Blue won game six, therefore 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.