(87) Kotov - Petrosjan [A55]
Zürich, 1953

1.d4 Nf6 2.c4 d6 3.Nc3 Nbd7 4.e4 e5 5.Nf3 Be7 6.g3 0-0 7.Bg2 c6 8.0-0 a6 9.b3 Re8 10.Bb2 Bf8 11.Qd3 b5 12.Nd2 Bb7 13.Kh1 exd4 14.Qxd4 c5 15.Qd3 Ne5 16.Qc2 Nc6 17.Nd5 Nd4 18.Qd3 g6 19.Bxd4 cxd4 20.Nxf6+ Qxf6 21.Kg1 Qe5 22.Rfe1 Bg7 23.Rac1 Re7 24.Nf3 Qc5 25.Bf1 h6 26.cxb5 Qxb5 27.Qd1 Qb6 28.Nd2 Rae8 29.Bd3 d5 30.e5 Rxe5 31.Rxe5 Rxe5 32.Nf3 Re4 33.Qd2 a5 1/2-1/2