The_game Deep_Blue_versus_Kasparov,_1996,_Game_1

a more common move here be7. new approach kasparov, developing bishop in unusual way. if 11.nc3 qa5 12.qb3 game transposes game kasparov played against kramnik. merit of new move debated. after move, computer left opening book , began calculating moves.

11. a3 ba5 12. nc3 qd6 13. nb5 qe7 14. ne5! bxe2 15. qxe2 0-0 16. rac1 rac8 17. bg5

black has problem pinned knight on f6.

17... bb6 18. bxf6 gxf6

kasparov avoids ...qxf6? because white gain material 19.nd7. note kasparov s king far more exposed.

19. nc4!

black cannot take d4-pawn due qg4+.

19... rfd8 20. nxb6! axb6 21. rfd1 f5 22. qe3!

this excellent square white s queen.

22... qf6 (see diagram) 23. d5!

this type of pawn sacrifice typical of kasparov s style of play. kasparov commented might have played 23.d5 himself in position, since hurts black s pawn structure , opens board, , black s exposed king suggests there way exploit result. kasparov has been attacking white s d-pawn, , computer wisely decides advance attack instead of trying defend it.

23... rxd5 24. rxd5 exd5 25. b3! kh8?

kasparov attempts prepare counterattack preparing move rook g-file, not work. burgess suggests 25...ne7 26.rxc8+ have been better, though white still have advantage. keene suggests 25...rd8! 26.qxb6 rd7 black s best try, strengthening passed d-pawn , queenside.

26. qxb6 rg8 27. qc5

black threatening 27...qg5 forking g2 , white rook.

27... d4 28. nd6 f4 29. nxb7

this materialistic move, typical of computers; white grabs undeveloped pawn small gain in material. however, deep blue has not identified threat of checkmate black, acquires material.

29... ne5 30. qd5

30.qxd4?? lose 30...nf3+. if white tries 30.nd6 idea of 31.qxe5 winning knight, black gets decisive pressure on g-file after 30...nf3+ 31.kh1 qg6. kasparov later commented on opponent: late game attack intimidate many players making mistake or two, not one.

30... f3 31. g3 (see diagram) nd3

it seems though black annihilate white 31...qf4, threatening both ...qxc1+ , 32.kh2 rxg3!! winning. instead white play 32.rc8!! , turn tables on black. kasparov may have seen , planned 32...qg5 33.h4 rxc8!! 34.hxg5 rc1+ 35.kh2 ng4+ 36.kh3 nxf2+ , mate next move, deep blue spoil 33.rc5.

32. rc7 re8

kasparov attacking, computer has correctly determined attack not real threat.

33. nd6 re1+ 34. kh2 nxf2 35. nxf7+ kg7

35...qxf7 36.qd8+ , white wins.

36. ng5+ kh6 37. rxh7+ 1–0

after 37...kg6 38.qg8+ kf5 39.nxf3, black cannot meet simultaneous threats of 40.nxe1, 40.rf7 , 40.qd5+. kasparov resigned.