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

EGTB: win in 4 half-moves

# move score
1 Kc7 win in 3 half-moves
2 Kb5 loss in 4 half-moves
3 Kb6 loss in 4 half-moves
4 Kb7 loss in 4 half-moves
5 Kc5 loss in 2 half-moves
6 Kd5 loss in 2 half-moves
7 Kd6 loss in 2 half-moves
8 Kd7 loss in 2 half-moves
9 Ne7 loss in 2 half-moves
10 Nh6 loss in 2 half-moves
11 Nf6 loss in 1 half-moves