[Event "Reykjavik"] [Site "Reykjavik"] [Round "0"] [White "Lajos Portisch"] [Black "Viktor Korchnoi"] [Result "0-1"] [ECO "D85"] [Opening "Gruenfeld: Exchange, 5.e4"] 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 c5 7.Bc4 Bg7 8.Ne2 O-O 9.O-O Nc6 10.Be3 Bg4 11.f3 Na5 12.Bxf7+ Rxf7 13.fxg4 Rxf1+ 14.Kxf1 Qc8 15.Qa4 cxd4 16.cxd4 Nc4 17.Bf4 a6 18.g5 b5 19.Qb3 e5 20.dxe5 Qc6 21.Rd1 Rf8 22.Rd5 Qxd5 23.exd5 Nd2+ 24.Ke1 Nxb3 25.axb3 Rd8 26.d6 Kf7 27.Kd2 Re8 28.d7 Ra8 29.Nd4 Ke7 30.Kd3 Kxd7 31.Ke4 Rd8 32.h4 Bf8 33.e6+ Ke8 34.Be5 Bc5 35.Nc6 Rd1 36.b4 Bd6 37.Bxd6 Rxd6 38.Nd4 Ke7 39.Ke5 a5 40.bxa5 b4 41.Ke4 Ke8 42.Ke5 Ra6 43.Nb3 Ke7 44.Kd5 Rxe6 45.Kc5 Kd7 46.Kxb4 Re4+ 47.Kb5 Rxh4 48.Nc5+ Kc7 49.a6 Rh1 50.Ne6+ Kd6 51.Nd4 Rb1+ 52.Ka5 Kc5 53.Ne6+ Kd5 54.Nf8 Kc6 55.Nxh7 Kc5 56.Ka4 Ra1+ 57.Kb3 Rxa6 58.Nf8 Rd6 59.Kc3 Kd5 60.g4 Ke4 61.Kc4 Rd4+ 62.Kc3 Rd6 63.Kc4 Kf4 64.Kc5 Ke5 65.Kc4 Ke4 66.Kb4 Kd4 67.Kb5 Kd5 68.Kb4 Rc6 69.Kb3 Kc5 70.Kc3 Rd6 71.Nh7 Rd8 72.Nf6 Rd4 {#R} 0-1