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

EGTB: win in 6 half-moves

# move score
1 Kb3 win in 5 half-moves
2 Kb4 win in 5 half-moves
3 Kc3 win in 5 half-moves
4 Kd3 win in 5 half-moves
5 Nb7 win in 9 half-moves
6 Kb5 loss in 4 half-moves
7 Kc5 loss in 4 half-moves
8 Kd4 loss in 2 half-moves
9 Kd5 loss in 2 half-moves
10 Nc6 loss in 2 half-moves
11 Ne6 loss in 2 half-moves
12 Nf7 loss in 2 half-moves