[Event "US Championship"]
[Site "New York, NY USA"]
[Date "1972.04.27"]
[EventDate "1972.04.23"]
[Round "4"]
[Result "1/2-1/2"]
[White "William E Martz"]
[Black "Gregory S DeFotis"]
[ECO "A10"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "35"]

1.c4 f5 2.b3 e5 3.Bb2 Nc6 4.e3 Nf6 5.Nf3 d6 6.d4 e4 7.d5 Nb8
8.Nd4 c5 9.dxc6 bxc6 10.Be2 a5 11.Nc3 g6 12.Qd2 Bg7 13.O-O O-O
14.f4 Qc7 15.Rfd1 Na6 16.Na4 Nc5 17.Nxc5 dxc5 18.Nc2 1/2-1/2