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

EGTB: win in 4 half-moves

# move score
1 Kd6 win in 3 half-moves
2 Nb3 draw
3 Kd5 loss in 2 half-moves
4 Kd7 loss in 2 half-moves
5 Ke5 loss in 2 half-moves
6 Ke7 loss in 2 half-moves
7 Kf5 loss in 2 half-moves
8 Kf6 loss in 2 half-moves
9 Kf7 loss in 2 half-moves
10 Nb7 loss in 2 half-moves
11 Nc4 loss in 2 half-moves
12 Nc6 loss in 2 half-moves