1.d4 d5 2.Nf3 Bf5 3.Bf4 e6 4.Nbd2 Bd6 5.Bg3 Nc6 6.e3 Nb4 7.Bb5+ c6 8.Ba4 b5 9.Bb3 Nf6 10.c3 Nd3+ 11.Ke2 Nxb2 12.Qe1 Bd3#