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

EGTB: win in 4 half-moves

# move score
1 Kc7 win in 3 half-moves
2 Kd8 win in 3 half-moves
3 Kb7 win in 5 half-moves
4 Kb8 win in 5 half-moves
5 Bb4 win in 7 half-moves
6 Be7 win in 7 half-moves
7 Bb2 draw
8 Bc1 draw
9 Bc5 draw
10 Bf8 draw
11 Bd6 loss in 2 half-moves
12 Kd7 loss in 2 half-moves