[Event "OHRA-A"]
[Site "Brussels"]
[Date "1986.??.??"]
[Round "?"]
[White "Portisch, Lajos"]
[Black "Nunn, John DM"]
[Result "1/2-1/2"]
[WhiteElo "2605"]
[BlackElo "2590"]
[ECO "D79"]

1.d4 Nf6 2.Nf3 g6 3.c4 Bg7 4.g3 O-O 5.Bg2 c6 6.Nc3 d5 7.cxd5 cxd5 8.Ne5 e6
9.O-O Nfd7 10.f4 Nxe5 11.dxe5 Qb6+ 12.Kh1 Nc6 13.b3 Bd7 14.Na4 Qb5 15.Ba3 Rfd8
16.Qd2 b6 17.Nc3 Qa5 18.Bb2 Rac8 19.Rfd1 Be8 20.Rac1 Bf8 21.a3  1/2-1/2

