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

EGTB: win in 4 half-moves

# move score
1 Ba4 win in 3 half-moves
2 Kd6 win in 5 half-moves
3 Ke6 win in 5 half-moves
4 Bb5 win in 7 half-moves
5 Bc6 win in 7 half-moves
6 Kb7 win in 7 half-moves
7 Kb8 win in 7 half-moves
8 Kc8 win in 7 half-moves
9 Kd8 win in 7 half-moves
10 Bd7 loss in 4 half-moves
11 Kb6 loss in 4 half-moves
12 Kc6 loss in 4 half-moves
13 Kd7 loss in 4 half-moves
14 Ke7 loss in 4 half-moves
15 Kf6 loss in 4 half-moves
16 Kf8 loss in 4 half-moves
17 Kg6 loss in 4 half-moves
18 Kg7 loss in 4 half-moves
19 Kg8 loss in 4 half-moves