[Event "USA op"]
[Site "Aspen"]
[Date "1968.??.??"]
[Round "?"]
[White "Benko, Pal C"]
[Black "Sherwin, James T"]
[Result "1/2-1/2"]
[WhiteElo ""]
[BlackElo ""]
[ECO "A13"]

1.c4 Nf6 2.Nf3 e6 3.g3 d5 4.b3 c6 5.Bg2 a5 6.O-O a4 7.Ba3 Bxa3 8.Nxa3 O-O
9.Qc1 Qe7 10.d4 Na6 11.Qb2 Bd7 12.Ne5 Rfb8 13.Nc2 Be8 14.Nd3 b6 15.Rfc1 Qd8
16.cxd5 cxd5 17.bxa4 Bxa4 18.Ncb4 Nxb4 19.Nxb4 Qd6 20.e3 h5 21.Qc3 Rc8 22.Qd3 Bd7
23.a3 Ra5 24.h3 g6 25.Bf3 Kg7 26.Kg2 Bb5  1/2-1/2

