[Event "Leningrad-ch"]
[Site "Leningrad URS"]
[Date "1971.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Viacheslav Osnos"]
[Black "Alexsander A Shashin"]
[ECO "E71"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "81"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.h3 O-O 6.Be3 e5 7.d5 c6
8.Bd3 cxd5 9.cxd5 Nbd7 10.Nge2 Nh5 11.Bc2 f5 12.exf5 gxf5
13.g4 Nf4 14.Bxf5 Nc5 15.Bxc5 Bxf5 16.Nxf4 exf4 17.Bd4 Qe7+
18.Kf1 Be4 19.Bxg7 Bxh1 20.Bxf8 Rxf8 21.Qe1 Qh4 22.Qe6+ Kg7
23.Ke2 Qxh3 24.Kd2 Qh4 25.Re1 Bf3 26.Kc1 Qf6 27.Qd7+ Rf7
28.Qc8 Re7 29.Re6 Rxe6 30.dxe6 Qe5 31.Qd7+ Kh6 32.e7 Bc6
33.Qd8 Qe1+ 34.Nd1 Qe5 35.Qf8+ Kg5 36.Qg8+ Kh4 37.Qxh7+ Kxg4
38.Qg6+ Kf3 39.Qd3+ Kg2 40.Qg6+ Kf3 41.Qd3+ 1/2-1/2