abcdefgh87654321
1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.d3 Bc5 5.Nc3 O-O 6.O-O Re8 7.Bg5 Nd4 8.Nxd4 Bxd4 9.Nd5 c6 10.Nxf6+ gxf6 11.Bh6 Kh8 12.Ba4 Rg8 13.c3 Bb6 14.Qh5 d5 15.Bd1 Be6 16.Kh1 Rg6 17.f4 Be3 18.Qh4 dxe4 19.dxe4 Bc4 20.Rf3 Qd2 21.Rxe3 Qxg2#