(1) Geller,E - Karpov,A [C16]
Moscow (3), 1976



1.e4 e6 2.d4 d5 3.Nc3 Bb4
The French Winawer

4.e5 Qd7
More customary is ...c5

5.Nf3 b6
to exchange the light-squared bishops on a6

6.Bd2 Ba6 7.Bxa6 Nxa6 8.0-0 Nb8
The knight has no future on a6 and is simply subject to attack with Qd3 or Qe2

9.Ne2 Be7
Holding onto the bishop, but Bxd2 and Ne7 was preferable

10.Rc1
idea c4

10...b5 11.Nf4 h5
preparing Nh6-f5

12.b3 Ba3 13.Rb1 a5 14.c4 c6 15.c5 Bb4 16.Bc1
threatening to trap the bishop.

16...a4 17.Nd3 Ba5
giving up a pawn to save the bishop

18.bxa4 bxa4 19.Qxa4 Qa7 20.Bg5 Bc7 21.Rxb8+!
playing to the crowd. Qxb8 or Qb3 were good enough

21...Qxb8
[21...Bxb8 22.Qxc6+ Kf8 (22...Qd7 23.Qxa8 ) 23.Qc8# ]

22.Qxc6+ Kf8 23.Nf4
setting up the sac

23...Ra7
[23...Bd8 recommended by Kasparov 24.Bxd8 Qxd8 25.Ng5 Rh6 26.Nfxe6+ fxe6 27.Nxe6+ Rxe6 28.Qxe6 Ne7 29.Qh3 Qe8 30.Qb3 Qa4 31.Qf3+ Kg8 white has a great advantage, but there would be a grind ahead.]

24.Nh4 Qe8
Diagram [24...Ne7 25.Nxe6+ Kg8 (25...fxe6 26.Qxe6 (26.Qxe6 Bd8 27.Bxe7+ Rxe7 28.Ng6+ Ke8 29.Qc6+ Kf7 30.Nxh8++- ) 26...Bd8 27.Bxe7+ Bxe7 28.Ng6+ Ke8 29.Nxh8+- ) ]

25.Qxe6! fxe6
[25...Qxe6 26.Nxe6+ fxe6 27.Ng6+ ]

26.Nfg6+ Qxg6
[26...Kf7 27.Nxh8+ Kf8 28.N4g6+ Qxg6 29.Nxg6+ Kf7 30.Nf4 Rxa2 31.Nxh5+- Kg6 32.Nf4+ Kxg5 33.Nxe6+ ]

27.Nxg6+ Ke8
[27...Kf7 28.Nxh8+ ]

28.Nxh8 Ra4 29.Rd1 Ne7 30.Bxe7 Kxe7 31.Ng6+ Kf7 32.Nf4+- Bxe5 33.dxe5 Rxf4 34.Rc1 Ke8 35.c6 Kd8 36.c7+ Kc8 37.g3 Ra4 38.Rc6 Rxa2 39.Rxe6 g5 40.Rd6 Rd2 41.e6 Kxc7 42.e7 1-0