[Event "USA-ch"]
[Site "El Paso"]
[Date "1973.??.??"]
[Round "12"]
[White "Grefe, John A"]
[Black "Evans, Larry Melvyn"]
[Result "1/2-1/2"]
[WhiteElo "2200"]
[BlackElo "2535"]
[ECO "B81"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 h6 7.h3 a6 8.Bg2 Qc7
9.O-O Nc6 10.Be3 Bd7 11.Qe2 Be7 12.f4 Nxd4 13.Bxd4 e5 14.Be3 exf4 15.Rxf4 Be6
16.Bd4 O-O 17.Nd5  1/2-1/2

