Find this if yuh have guts


1.Nf6+ Kg7
If 1...Kg6 2.Bh5+ followed by 3.d8=Q, as the bishop now covers the forking square f7.
2.Nh5+ Kg6
If 2...Kf7 3.d8=Q wins; if 2...Kh7 3.Bc2+ forces the king on to the back rank, allowing d8=Q+ and mate in a few moves.
3.Bc2+!!
This move is difficult for engines to find.
3...Kxh5 4.d8=Q! Nf7+
The obvious move, and the intent of the composer; however, 4...Kg4 puts up much stiffer resistance. (5.Qf6 wins according to Ehn and Kastner, but the win is not intuitively clear). If the problem is set with the knight on h8, then 4...Kg4 can be met by 5.Qh4+ with mate soon to follow.
5.Ke6 Nxd8+ 6.Kf5
White threatens Bd1+. There now follows a remarkable zig zag manoeuvre by the bishop, Black defending against the mating threats by twice underpromoting to a knight to cover the mating square, until there is no further defence.
6...e2 7.Be4 e1=N 8.Bd5 c2 9.Bc4 c1=N 10.Bb5 Nc7
Black can delay the inevitable mate by one move by 10...Nc6.
11.Ba4 1-0