[Event "USA-ch / Zonal"] [Site "Estes Park, CO USA"] [Date "1986.??.??"] [EventDate "?"] [Round "?"] [Result "1/2-1/2"] [White "Larry Mark Christiansen"] [Black "John Fedorowicz"] [ECO "E81"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "30"] 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c6 7.Bd3 a6 8.Nge2 b5 9.O-O Nbd7 10.cxb5 axb5 11.b4 Nb6 12.a4 Nxa4 13.Nxa4 bxa4 14.Rxa4 Bb7 15.Nc3 Qb6 1/2-1/2