Deep Blue–Kasparov, 1996, Game 1 is a famous chess game in which a computer played against a human being. It was the first game played in the 1996 Deep Blue versus Garry Kasparov match, and the first time that a chess-playing computer defeated a reigning world champion under normal chess tournament conditions (in particular, standard time control; in this case 40 moves in two hours).

Overview

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was a computer developed by IBM to beat grandmaster Garry Kasparov, the top chess player in the world at the time according to

Elo rating The Elo rating system is a method for calculating the relative skill levels of players in zero-sum games such as chess. It is named after its creator Arpad Elo, a Hungarian-American physics professor. The Elo system was invented as an improved ch ...

s. Playing White, Deep Blue won this first game in the match on February 10, 1996, in Philadelphia, Pennsylvania. Kasparov rebounded over the next five games, winning three and

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two, to soundly beat the machine in the 1996 match.

The game

White: Deep Blue Black: Kasparov Opening:

Sicilian Defense, Alapin Variation In chess, the Sicilian Defence, Alapin Variation is a response to the Sicilian Defence characterised by the moves: :1. e4 c5 :2. c3 It is named after the Russian master Semyon Alapin (1856–1923). For many years, it was not held in high re ...

('' ECO'' B22) 1. e4 c5 2. c3 :It is more common to play 2.Nf3, but Kasparov has deep experience with that line, so White's opening book goes in a different direction. The IBM team determined the opening moves played by Deep Blue. 2... d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 Bg4 6. Be2 e6 7. h3 Bh5 8. 0-0 Nc6 9. Be3 cxd4 10. cxd4 Bb4 (diagram) :A more common move here is Be7. This was a new approach by Kasparov, developing the bishop in an unusual way. If 11.Nc3 Qa5 12.Qb3 then the game transposes into a game Kasparov previously played against

Kramnik Vladimir Borisovich Kramnik (russian: Влади́мир Бори́сович Кра́мник; born 25 June 1975) is a Russian chess grandmaster. He was the Classical World Chess Champion from 2000 to 2006, and the undisputed World Chess Cha ...

. The merit of the new move is debated. After this move, the computer left its opening book and began calculating its moves. 11. a3 Ba5 12. Nc3 Qd6 13. Nb5 Qe7 14. Ne5 Bxe2 15. Qxe2 0-0 16. Rac1 Rac8 17. Bg5 :Black now has a problem with the pinned knight on f6. 17... Bb6 18. Bxf6 gxf6 :Kasparov avoids ...Qxf6 because White would gain with 19.Nd7 by forking the Queen and Rook. Note that Kasparov's king is now far more exposed. 19. Nc4! :Black cannot take the d4-pawn due to Qg4+. 19... Rfd8 20. Nxb6! axb6 21. Rfd1 f5 22. Qe3!? :Two questionable moves by Deep Blue. 21.Qg4+ Kh8 22.Rcd1 was better, bringing White's queen and to attack Black's . 22... Qf6 (diagram) 23. d5! :This type of pawn

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is typical of Kasparov's style of play. Kasparov commented that he might have played 23.d5 himself in this position, since it hurts Black's pawn structure and opens up the board, and Black's exposed king suggests that there is probably a way to exploit the result. Kasparov has been attacking White's d-pawn, and the computer wisely decides to advance it for an attack instead of trying to defend it. 23... Rxd5 24. Rxd5 exd5 25. b3! Kh8 :Kasparov attempts to prepare a counterattack by preparing to move his rook to the g-, but it will not work. Burgess suggests that 25...Ne7 26.Rxc8+ would have been better, though White would still have some advantage. Keene suggests that 25...Rd8! 26.Qxb6 Rd7 was Black's best try, strengthening his passed d-pawn and . 26. Qxb6 Rg8 27. Qc5 :Black was threatening 27...Qg5 forking g2 and the white rook. 27... d4? 28. Nd6 f4 29. Nxb7 :This is a very materialistic move, typical of computers at the time; White grabs a pawn for a small gain in material. Deep Blue has not identified any threat of

checkmate Checkmate (often shortened to mate) is any game position in chess and other chess-like games in which a player's king is in check (threatened with ) and there is no possible escape. Checkmating the opponent wins the game. In chess, the king is ...

from Black, however, so it simply acquires the material. 29... Ne5 30. Qd5 :30.Qxd4 would lose to 30...Nf3+. If White tries 30.Nd6 with the idea of 31.Qxe5 winning the knight, Black gets decisive pressure on the g-file after 30...Nf3+ 31.Kh1 Qg6. Kasparov later commented on his opponent: "My late game attack would intimidate many players into making a mistake or two, but not this one." 30... f3? 31. g3 (see diagram) Nd3 :It seems as though Black could annihilate White with 31...Qf4, threatening both ...Qxc1+ and 32.Kh2 Rxg3 winning. But instead White could play 32.Rc8!! and turn the tables on Black. Kasparov may have seen this and planned 32...Qg5 33.h4 Rxc8!! 34.hxg5 Rc1+ 35.Kh2 Ng4+ 36.Kh3 Nxf2+ and mate next move, however Deep Blue could then spoil everything with 33.Rc5.Keene (2005), pp. 112–13 32. Rc7 Re8?? :Kasparov makes a huge blunder, thinking he can muster an attack on White's king. Deep Blue realizes this is not a real threat and continues to gobble material. 33. Nd6 Re1+ 34. Kh2 Nxf2 35. Nxf7+ Kg7 :35...Qxf7 36.Qd8+ and White wins. 36. Ng5+ Kh6 37. Rxh7+ :After 37...Kg6 38.Qg8+ Kf5 39.Nxf3, Black cannot meet the simultaneous threats of 40.Nxe1, 40.Rf7 and 40.Qd5+. Kasparov resigned.

References

Bibliography * Burgess, Graham, John Nunn, & John Emms. ''The Mammoth Book of the World's Greatest Chess Games'', 2nd ed. 2004. New York: Carroll and Graf Publishers, Inc. . *Eade, James. ''Chess for Dummies''. 1996. Foster City, CA: IDG Books Worldwide, Inc. . * *Wheeler, David A. Deep Blue – Kasparov, 1996, Game 1. http://www.dwheeler.com/misc/deepblue-kasparov.txt {{Webarchive, url=https://web.archive.org/web/20060207145116/http://dwheeler.com/misc/deepblue-kasparov.txt , date=2006-02-07 (in Portable Game Notation)
Game 1 and the other games from 1996
( IBM.com)
View all the games in the match versus Deep Blue.
Computer chess Chess games History of chess 1996 in chess 1996 in sports in Pennsylvania February 1996 sports events in the United States Garry Kasparov

Overview

The game

See also

References