[Event "USA op"]
[Site "Aspen"]
[Date "1968.??.??"]
[Round "?"]
[White "Gross, Ronald Jos"]
[Black "Benko, Pal C"]
[Result "0-1"]
[WhiteElo ""]
[BlackElo ""]
[ECO "A59"]

1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.bxa6 g6 6.Nc3 Bxa6 7.e4 Bxf1 8.Kxf1 d6
9.Nge2 Bg7 10.g3 O-O 11.Kg2 Qb6 12.Rb1 Na6 13.b3 Nc7 14.f3 e6 15.dxe6 fxe6
16.Be3 Qc6 17.Qd2 d5 18.exd5 exd5 19.Bf4 d4 20.Na4 Nfd5 21.Rhf1 Ne6 22.Rf2 d3
23.Ng1 Nexf4+ 24.gxf4 Nxf4+ 25.Kh1 Bd4 26.Rff1 Ne2  0-1

