[Event "Siegen olm"]
[Site "Siegen"]
[Date "1970.??.??"]
[Round "4"]
[White "Mondragon, J."]
[Black "Benko, Pal C"]
[Result "0-1"]
[WhiteElo ""]
[BlackElo ""]
[ECO "B23"]

1.e4 c5 2.Nc3 Nc6 3.f4 g6 4.Nf3 Bg7 5.Bc4 e6 6.f5 Nge7 7.fxe6 dxe6 8.d3 Na5
9.Bb5+ Bd7 10.Bxd7+ Qxd7 11.Be3 b6 12.O-O Nac6 13.Qd2 h6 14.Rad1 Nd4 15.Qf2 Nec6
16.Rd2 O-O 17.g4 f5 18.gxf5 exf5 19.Qg2 Nxf3+ 20.Rxf3 Ne5 21.Rh3 f4 22.Bf2 g5
23.Nd5 g4  0-1

