(1) Kasparov,G - Polugaevsky,L (2620) [B43]
URS-ch46 Tbilisi (4), 12.1978



1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.Be2 b5 7.Bf3 Bb7 8.0-0 Nc6 9.Nxc6 dxc6
Diagram

10.e5
A new move. Kasparov offers a pawn for open lines in the center.

10...Qxe5 11.Re1 Qc7 12.Bh5
With the threat of Rxe6+

12...Be7
[12...g6!? 13.Qd4 f6 14.Rxe6+ Kf7 15.Bg4 Rd8 16.Qe4~~ ]

13.Rxe6 g6 14.Re1 Rd8
[14...gxh5 Best probably to take immediately 15.Qd4 f6 16.Bf4 c5 17.Qe3 Qc6 18.Qh3 witrh much pressure upon black's position]

15.Qf3 c5 16.Bf4 Qb6
[16...Bxf3 17.Bxc7 Bxh5 18.Bxd8 Kxd8 19.f3 with compensation owing to the awkwardness of the Bh5]

17.Qg3 gxh5 18.Bc7 Qg6 19.Bxd8 Qxg3 20.hxg3 Kxd8 21.Rad1+ Kc7 22.Nd5+ Bxd5 23.Rxd5 h6 24.Rxh5 Rh7 25.Rhe5 Kd7 26.R5e3 Rg7 27.Rd3+ Kc7 28.Ra3 Rg6 29.Rf3 Bf6 30.c3 Kd7 31.Rd3+ Kc7 32.Re8 Ne7 33.Red8 Nc6 34.R8d7+ Kb6 35.Rxf7 Be7 36.Re3 Bd6 37.f4 c4 38.Kh2 Bc5 39.Re2 b4 40.Re4 bxc3 41.bxc3 Bf2 42.Rxc4
[42.f5!? ]

42...Bxg3+ 43.Kh3 Be1 44.a4 Na5?!
[44...Rg3+ 45.Kh2 Rxc3 46.Rxc3 Bxc3 47.Rh7 Ka5 48.Rxh6 Nb4 49.g4 Kxa4 50.f5 a5 51.f6+- ]

45.Rb4+ Kc5
[45...Kc6 better, but still losing 46.Rf5 Bxc3 47.Rxa5 Bxb4 48.Rxa6+ ]

46.Rf5+ 1-0