[Event "15th olm qual. group 4"]
[Site "Varna BUL"]
[Date "1962.09.22"]
[Round "5"]
[White "Koelvig, Bent DEN"]
[Black "Najdorf, Miguel ARG"]
[Result "0-1"]
[ECO "B97"]
[EventDate "1962.09.16"]
[PlyCount "66"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6 8.a3 Nc6 
9.Nb3 Be7 10.Qf3 Qc7 11.O-O-O Bd7 12.g4 h6 13.Bxf6 Bxf6 14.h4 O-O-O 15.Be2
g6 16.Kb1 Kb8 17.Qd3 Bc8 18.g5 Bg7 19.Bf3 Ne7 20.Nd4 e5 21.Nde2 exf4 22.
Nxf4 Bxc3 23.Qxc3 Qxc3 24.bxc3 Nc6 25.Nd5 Ne5 26.Be2 Be6 27.Nf6 Rc8 28.Kb2
Rc6 29.Rdf1 hxg5 30.hxg5 Rhc8 31.c4 Bxc4 32.Bxc4 Nxc4+ 33.Ka2 Nd2 0-1

