[Event "Helsinki"]
[Site "Helsinki"]
[Date "1983.??.??"]
[Round "3"]
[White "Nunn, John DM"]
[Black "Mortensen, Erling"]
[Result "1/2-1/2"]
[WhiteElo "2570"]
[BlackElo "2475"]
[ECO "B70"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.g3 Nc6 7.Nde2 Bg7 8.Bg2 Bd7
9.h3 O-O 10.O-O Rc8 11.a4 Nb4 12.Be3 a5 13.Qd2 Bc6 14.Rfd1 Nd7 15.Nd4 Nb6
16.b3 d5 17.Rac1 e6 18.exd5 N6xd5 19.Nxc6 bxc6 20.Nxd5 Nxd5 21.Bc5 Bc3 22.Qd3 Re8
23.Bd4 Bxd4 24.Qxd4 Qe7 25.Qe5 Qc7 26.Qe1 Red8 27.Rd2 Ne7 28.Rcd1 Rxd2 29.Qxd2 Nd5
30.h4 h5 31.c4 Ne7 32.b4 axb4 33.Qxb4 Rb8 34.Qa3 Ra8 35.Rb1 Ra5 36.Rb4 Qa7
37.Qb2 e5 38.Rb7 Qc5 39.Rb8+ Kg7 40.Qd2 Rxa4 41.Qd8 Ra1+ 42.Kh2 Kf6 43.Rc8 e4
44.Rc7 Ra2 45.Kh3 Re2 46.Qh8+ Ke6 47.Qe8 f5 48.f3 Re3 49.f4 Rd3 50.Rb7 Rd2
51.Bh1 Rd3 52.Bg2 Rd1 53.Kh2 Qg1+ 54.Kh3 Qc5 55.Kh2 Rd4 56.Bf1 Rd2+ 57.Bg2 Rc2
58.Kh3 Rxc4 59.Qd7+ Kf7 60.Rb8 Rc3 61.Qe8+ Ke6 62.Rb7 Qd6 63.Qh8 Rc1 64.Qb2 Rd1
65.Qb3+ Kf6 66.Qc3+ Qd4 67.Qa3 Qd6 68.Qc3+ Rd4 69.Bf1 c5 70.Bb5 Nd5 71.Qa5 Nxf4+
72.gxf4 Qxf4 73.Qa6+ Rd6  1/2-1/2

