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

EGTB: win in 4 half-moves

# move score
1 Nf8 win in 3 half-moves
2 Ka5 draw
3 Ka6 draw
4 Ka7 draw
5 Kb5 draw
6 Kc5 draw
7 Kc7 draw
8 Nb8 draw
9 Kb7 loss in 4 half-moves
10 Nc5 loss in 2 half-moves
11 Ne5 loss in 2 half-moves
12 Nf6 loss in 2 half-moves
13 Kc6 loss in 1 half-moves