[Event "?"] [Site "Leipzig GER"] [Date "1877.??.??"] [Round "6"] [White "Paulsen, Louis"] [Black "Leffmann, Karl"] [Result "1-0"] [ECO "A85"] 1.c4 e6 2.d4 f5 3.a3 Nf6 4.Nc3 d6 5.Nf3 g6 6.e3 Bg7 7.Be2 b6 8.O-O Bb7 9. Ng5 Qe7 10.Bf3 Bxf3 11.Qxf3 c6 12.d5 exd5 13.cxd5 c5 14.Ne6 a6 15.e4 fxe4 16.Nxe4 Nxe4 17.Qxe4 Be5 18.Bg5 1-0