(1) Averbakh,Y - Bebchuk,E [A29]
Moscow-ch Moscow, 1964



1.c4 Nf6 2.Nc3 e5 3.g3 d5 4.cxd5 Nxd5 5.Bg2 Nb6 6.Nf3 Nc6 7.0-0 Be7 8.d3 0-0 9.a4 a5 10.Be3 Be6 11.Nd2 Nd5 12.Nxd5 Bxd5 13.Bxd5 Qxd5 14.Rc1 Bd6 15.Qb3 Qxb3 16.Nxb3 Rfe8 17.Nc5 Bxc5 18.Rxc5 Re7 19.Rfc1 f6 20.R1c4 Kf7 21.f3 Re6 22.Kf2 Ke8 23.f4 Kd7 24.f5 Rd6 25.Rh4 Rh8 26.Rcc4 Kc8 27.Bc5 Rd7 28.Rh5 Nd4 29.e3 Nb3 30.Bb6 Kb8 31.Rc3 cxb6 32.Rxb3 Ka7 33.Rh4 h6 34.Rc4 Rhd8 35.Ke2 Rd5 36.Rc7 R8d7 37.Rxd7 Rxd7 38.Rc3 Kb8 39.Rc4 Rd5 40.Rg4 Rd7 41.d4 exd4 42.Rxd4 Re7 43.b4 axb4 44.Rxb4 Kc7 45.g4 Kc6 46.h4 Re5 47.Kd3 b5 48.Rxb5 Rxb5 49.axb5+ Kxb5 50.e4 Kc6
Diagram

51.e5!
Otherwise Black simply plays Kd6 on the next move.

51...fxe5
[51...b5 52.e6 And the black king will have to stay near the white e-pawn while white strolls over to capture the b-pawn; 51...Kd7 52.e6+ with a protected passer. White will win the b-pawn and the game]

52.g5!
There's no good way to stop the threat of f5-f6

52...hxg5
[52...Kd7 53.f6 Ke6 (53...gxf6 54.gxh6+- ) 54.fxg7 Kf7 55.gxh6 Kg8 (55...b5 56.Ke4 b4 57.Kd3 Kg8 (57...b3 58.Kc3 e4 59.Kxb3 e3 60.Kc3 e2 61.Kd2 e1Q+ 62.Kxe1 ) 58.Kc4 e4 59.Kxb4 e3 60.Kc3 e2 61.Kd2 e1Q+ 62.Kxe1+- ) 56.Ke4 b5 57.Kxe5+- ; 52...h5 53.f6 g6 (53...gxf6 54.g6 ) 54.f7 ]

53.f6!
[53.f6 gxf6 (53...g6 54.f7 ) 54.h5+- ] 1-0