[Event "2. USA Congress"] [Site "Cleveland, OH USA"] [Date "1871.??.??"] [Round "2"] [White "Smith, Harsen D"] [Black "Mackenzie, George H"] [Result "0-1"] [ECO "C67o"] 1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Nd6 6.Bxc6 bxc6 7.Nxe5 Be7 8. f4 O-O 9.f5 f6 10.Ng6 Re8 11.Qh5 Bf8 12.Nc3 Ba6 13.Rf3 Re1+ 14.Kf2 Qe8 15. Rh3 Rf1+ 16.Kg3 Nxf5+ 17.Kg4 Qxg6+ 18.Qxg6 hxg6 19.b3 Bd6 20.Ne4 Be2+ 0-1