[Event "USA-ch/zt"]
[Site "South Bend"]
[Date "1981.??.??"]
[Round "4"]
[White "Peters, John A"]
[Black "Shamkovich, Leonid"]
[Result "1/2-1/2"]
[WhiteElo "2445"]
[BlackElo "2500"]
[ECO "B80"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 d6 6.g3 a6 7.Bg2 Bd7 8.O-O Nf6
9.Nxc6 Bxc6 10.Re1 Rc8 11.a4 Be7 12.Be3 O-O 13.a5 Nd7 14.Na4 g6 15.c4 b5
16.axb6 Bxa4 17.Qxa4 Nxb6 18.Qxa6 Nxc4 19.Bd4 Bf6 20.Bxf6 Qxf6 21.Rac1 Qd4
22.Red1 Qb6 23.Qxb6 Nxb6 24.b4 Rxc1 25.Rxc1 Rc8 26.Rd1 Rc4 27.Rxd6  1/2-1/2

