[Event "Candidats sf2"]
[Site "Moscow"]
[Date "1971.??.??"]
[Round "1"]
[White "Petrosian, Tigran V"]
[Black "Kortschnoj, Viktor"]
[Result "1/2-1/2"]
[WhiteElo "2640"]
[BlackElo "2670"]
[ECO "E35"]
[Opening "Nimzo-Indian Defense: Classical Variation, Noa Variation"]
[PlyCount "70"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 exd5 6.a3 Bxc3+ 7.bxc3 O-O 8.Bg5 c5 9.e3 Nbd7 10.Bd3 Qa5 11.Ne2 b6 12.O-O Ba6 13.Bxa6 Qxa6 14.Bxf6 Nxf6 15.Nf4 Qc4 16.Qa2 Qxa2 17.Rxa2 Rac8 18.a4 Rfd8 19.Rb1 Ne4 20.Ne2 Nd6 21.h4 Nc4 22.Nf4 Kf8 23.g4 g6 24.Kg2 h6 25.Rd1 g5 26.hxg5 hxg5 27.Ne2 Nd6 28.Ng3 cxd4 29.Rxd4 Ne4 30.Nxe4 dxe4 31.Rxe4 Rxc3 32.a5 Rdc8 33.axb6 axb6 34.Rb2 R8c4 35.Rxc4 Rxc4 1/2-1/2