[Event "London+"] [Site "London ENG"] [Date "1883.??.??"] [Round "?"] [White "Mackenzie, George H"] [Black "Rosenthal, Samuel"] [Result "1/2-1/2"] [ECO "A28"] 1.c4 e5 2.e3 Nf6 3.Nc3 Nc6 4.Nf3 Bb4 5.Qc2 Bxc3 6.Qxc3 d6 7.a3 O-O 8.d4 exd4 9.Nxd4 Nxd4 10.Qxd4 d5 11.cxd5 Qxd5 12.Qxd5 Nxd5 1/2-1/2