Click on the third or sixth rank to set the en passant target square.

EGTB: win in 4 half-moves

# move score
1 Nh7 win in 3 half-moves
2 Kb6 draw
3 Nd7 draw
4 Kd8 loss in 42 half-moves
5 Kb7 loss in 16 half-moves
6 Kb8 loss in 14 half-moves
7 Kc6 loss in 12 half-moves
8 Kd7 loss in 12 half-moves
9 Kc8 loss in 4 half-moves
10 Kd6 loss in 2 half-moves
11 Ne6 loss in 2 half-moves
12 Ng6 loss in 2 half-moves