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 Bb2 draw
3 Bc3 draw
4 Bh8 draw
5 Kb7 draw
6 Kb8 draw
7 Kc6 draw
8 Kc8 draw
9 Kd7 draw
10 Kd8 draw
11 Bd4 loss in 2 half-moves
12 Be5 loss in 2 half-moves
13 Bf6 loss in 2 half-moves
14 Bg7 loss in 2 half-moves
15 Kb6 loss in 2 half-moves