[Event "USA-ch"]
[Site "Estes Park"]
[Date "1985.??.??"]
[Round "5"]
[White "Kogan, Boris"]
[Black "De Firmian, Nick E"]
[Result "1/2-1/2"]
[WhiteElo "2500"]
[BlackElo "2540"]
[ECO "A04"]

1.Nf3 c5 2.g3 b6 3.Bg2 Bb7 4.O-O Nf6 5.c4 Nc6 6.b3 e6 7.Bb2 Be7 8.e3 O-O
9.Nc3 Rc8 10.Rc1 d5 11.d3 dxc4  1/2-1/2

