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

EGTB: win in 4 half-moves

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