(1711) Kortschnoj,V (2645) - Petrosian,T (2645) [E05]
Candidates qf1 Ciocco (1), 1977

1.c4 e6 2.g3 d5 3.Bg2 Nf6 4.Nf3 Be7 5.0-0 0-0 6.d4 dxc4 7.Ne5 Nc6 8.Bxc6 bxc6 9.Nc3 c5 10.dxc5 Bxc5 11.Qa4 Nd5 12.Ne4 Nb6 13.Qc2 Be7 14.Nxc4 Nxc4 15.Qxc4 Qd5 16.Qc2 Bb7 17.f3 Qd4+ 18.Kg2 Bxe4 19.Qxe4 Qxe4 20.fxe4 Rfb8 21.b3 Bd6 22.Bf4 1/2-1/2