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

EGTB: win in 4 half-moves

# move score
1 Bb8 win in 3 half-moves
2 Kc7 win in 5 half-moves
3 Kb8 win in 7 half-moves
4 Kd7 win in 7 half-moves
5 Bb6 draw
6 Bc5 draw
7 Bd4 draw
8 Bf2 draw
9 Bg1 draw
10 Kb7 draw
11 Kd8 draw
12 Be3 loss in 2 half-moves