[Event "St Petersburg op"]
[Site "St Petersburg"]
[Date "1993.??.??"]
[Round "?"]
[White "Tiviakov, Sergei"]
[Black "Tregubov, Pavel V"]
[Result "1-0"]
[WhiteElo "2635"]
[BlackElo "2475"]
[ECO "B43"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.Bd3 b5 7.O-O Bb7 8.Re1 Bd6
9.Nf3 Bc5 10.e5 f5 11.Ng5 Ne7 12.Qh5+ g6 13.Qh6 Nbc6 14.Bf4 Nb4 15.a3 Qc6
16.Nf3 Nbd5 17.Nxd5 Nxd5 18.Bg5 Bf8 19.Qh3 Bg7 20.Bh6 O-O 21.Nd4 Qc5 22.c3 Rae8
23.Bf1 Nb6 24.Rad1 Rf7 25.Bxg7 Kxg7 26.Qe3 Qc7 27.h4 Nd5 28.Qg3 Kh8 29.Bxb5 axb5
30.Nxb5 Qc6 31.Nd6 Ref8 32.c4 Ne7 33.Qf3 Ba8 34.Qxc6 Nxc6 35.Nxf7+ Rxf7 36.b4 Kg7
37.Rd6 Bb7 38.f4 Kf8 39.Kf2 Ke7 40.Ke3 Kd8 41.g3 Kc7 42.Kd2 h6 43.b5 Ne7
44.Kc3 Nc8 45.Rd4 g5 46.hxg5 hxg5 47.fxg5 Rg7 48.Red1 Nb6 49.Kb4 Rxg5 50.a4 Rxg3
51.a5 Nc8 52.Rxd7+ Kb8 53.a6 Be4 54.Kc5 Ra3 55.Rf7 1-0