Deep Blue (chess computer) of the following five games, beating Deep Blue by a score of 4–2 (wins count 1 point, draws count ½ point). The match concluded on 17 February 1996. Deep Blue was then heavily upgraded (unofficially nicknamed "Deeper Blue") and played Kasparov again in May 1997, winning the six-game rematch 3½–2½, ending on 11 May. Deep Blue won the deciding game six after Kasparov made a mistake in the opening, becoming the first computer system to defeat a reigning world champion in a match under standard chess tournament time controls. The system derived its playing strength mainly from brute force computing
Deep Blue versus Kasparov, 1997, Game 6 first time that a computer had defeated a World Champion in a match of several games. This, as well as the fact that Kasparov had lasted only 19 moves in a game lasting barely more than an hour, attracted much media attention. White: Deep Blue Black: Garry Kasparov Opening: Caro–Kann Defense, Steinitz Variation ("ECO" B17) 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Ng5 (see diagram) 5... Ngf6 6. Bd3 e6 7. N1f3 h6? (see diagram) 8. Nxe6! 8... Qe7 9. 0-0 9... fxe6 10. Bg6+ Kd8 11. Bf4 (see diagram) 11... b5? 12. a4