Section A1 – Win
1.fxg5 f2 2.Bc4+ d5 3.Bxd5+ Kf8 4.Nh4 Bf5+
( 4…Be8+ 5.Kd8 f1=Q 6.h7 Be7+ 7.fxe7+ Kg7 8.h8=Q+ Kxh8 9.Kxe8 Qb5+ 10.Kf8 Qxd5 11.e8=Q )
5.Nxf5 f1=Q
( 5…g3 6.h7 f1=Q 7.h8=Q# )
6.Nxd4 Qd3
( 6…Qb1 7.d3 Qb8 8.Ne6+ Kg8 9.Nc7+ Kh8 10.g6 Bb2 11.g7+ Kh7 12.g8=Q+ Qxg8 13.Bxg8+ Kxg8 14.h7+ Kxh7 15.f7 )
7.Ne6+ Kg8 8.Nf4+ Qxd5+ 9.Nxd5 *