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

EGTB: win in 4 half-moves

# move score
1 Kb4 win in 3 half-moves
2 Bc3 win in 5 half-moves
3 Bd4 win in 5 half-moves
4 Bb2 draw
5 Bf6 draw
6 Bg7 draw
7 Bh8 draw
8 Ka4 draw
9 Ka6 draw
10 Kb5 draw
11 Kb6 draw
12 Be5 loss in 2 half-moves