[Event "IBM"]
[Site "Amsterdam"]
[Date "1976.??.??"]
[Round "4"]
[White "Kortschnoj, Viktor"]
[Black "Sax, Gyula"]
[Result "1/2-1/2"]
[WhiteElo "2670"]
[BlackElo "2530"]
[ECO "D86"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2 b6
9.Be3 Bb7 10.Qc2 Nc6 11.Rb1 Na5 12.Bd3 Rc8 13.c4 e5 14.Bd2 Ba8 15.Bxa5 bxa5
16.d5 c6 17.Qd2 cxd5 18.cxd5 Rc5 19.Qe3 Qd6 20.O-O Rfc8 21.Qg3 Bf8 22.h4 Rd8
23.h5 Rc7 24.Rfd1 Bb7 25.Kh1 Bg7 26.hxg6 hxg6 27.Qg5 a4 28.Kg1 Bc8 29.Rdc1 Bf6
30.Qd2 Bd7 31.Rxc7 Qxc7 32.Bb5 Bxb5 33.Rxb5 Be7 34.Ng3 Rc8 35.Nf1 Qc4 36.Rb7 Bc5
37.d6 Rd8 38.Rc7 Qd4 39.d7 Kg7 40.Qxd4 Bxd4 41.Nd2 Bb6 42.Rb7 Kf6 43.Nc4 Bd4
44.Na5 Ke6 45.Nc6 Rxd7 46.Rxd7 Kxd7 47.Nxd4 exd4 48.Kf1 Kd6 49.Ke2 Ke5 50.Kd3 g5
51.a3 a6 52.f4+ Kxf4 53.Kxd4 Kg3 54.e5  1/2-1/2

