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.
Deep Blue vs Kasparov: How a computer beat best chess player in the world - BBC News
Deep Blue beat G. Kasparov in 1997
Kasparov's quickest defeat: Deep Blue (Computer) vs Garry Kasparov 1997
First Computer to Beat Kasparov 😱 - Intel Grand Prix London 1994)