(1) Kavalek,L (2595) - Kasparov,G (2630) [E90]
Bugojno Bugojno (9), 1982



1.c4 g6 2.Nc3 Bg7 3.d4 Nf6
The King's Indian Defense

4.e4
Black makes no effort to prevent this move, preferring to counter-attack the center with ...d6 and ...e5

4...d6 5.Nf3 0-0 6.h3 e5 7.d5
The battle lines are drawn. White will usually attack on the queenside; black will usually seek counter-play with ...f5

7...Na6 8.Be3 Nh5
Making way for f7-f5; in many lines, the knight moves to f4

9.Nh2
idea Be2

9...Qe8 10.Be2 Nf4 11.Bf3
Guarding g2, aiming to trap the Nf4

11...f5 12.h4
[12.g3 Nxh3 ]

12...Qe7 13.g3
Is the Nf4 trapped?

13...Nb4 14.Qb3
Are both knights over-extended, or is Black flat-out winning? [14.gxf4 fxe4 15.Nxe4 exf4 16.Bd2 Nd3+ 17.Kf1 (17.Ke2 Nc5-+ ) 17...Bh3+ 18.Kg1 Nxb2 19.Qe2 Nxc4 20.Qxc4 Bxa1 ; 14.0-0! g5 15.gxf4 gxf4 16.Bc1 Qxh4 ]

14...Nfd3+ 15.Ke2 f4 16.Bd2 fxg3
[16...Nxf2 17.Kxf2 Nd3+ 18.Kg2 fxg3 19.Kxg3~~ ]

17.fxg3 Rxf3! 18.Nxf3 Bg4
threatening Rf8

19.Raf1 Rf8 20.Nd1
[20.Be3! when Kasparov intended 20...Bh6 21.Bxh6 Rxf3 22.Rxf3 Bxf3+ 23.Kxf3 Qf6+ 24.Kg2 Qf2+ 25.Kh3 Qf3 26.Rh2 g5 27.Bxg5 Qf1+ 28.Kg4 h5+ 29.Kxh5 Qf3+ 30.Kh6 Qf8+ 31.Kh5 Qf3+= ]

20...Qf7 21.Be3
[21.Bxb4 Nc1+ ]

21...Bxf3+ 22.Kd2 Qd7 23.Rhg1 Qh3 24.a3 Bxe4 25.Rxf8+ Bxf8 26.axb4 Qh2+ 27.Kc3 Nc1 0-1