abcdefgh87654321
1.d4 c5 2.d5 e5 3.Nc3 d6 4.e4 f5 5.Bb5+ Bd7 6.exf5 a6 7.Qh5+ g6 8.fxg6 Nf6 9.g7+ Nxh5 10.gxh8=Q axb5 11.Qxh7 Ng7 12.Qg6+