[Event "2. USA Congress"] [Site "Cleveland, OH USA"] [Date "1871.??.??"] [Round "2"] [White "Mackenzie, George H"] [Black "Elder, Frederic"] [Result "1-0"] [ECO "C84j"] 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.d4 exd4 6.e5 Ne4 7.O-O Be7 8.Nxd4 Nxd4 9.Qxd4 Nc5 10.Bb3 Nxb3 11.axb3 O-O 12.Bf4 f6 13.Qc4+ Kh8 14.exf6 Bxf6 15.Bxc7 Qe8 16.Bd6 Rf7 17.Nc3 b6 18.Rae1 Qg8 19.Qe4 1-0