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

EGTB: win in 4 half-moves

# move score
1 Kg5 win in 3 half-moves
2 Kg6 win in 3 half-moves
3 Kg7 win in 3 half-moves
4 Kh5 win in 5 half-moves
5 Kh7 win in 5 half-moves
6 Be6 win in 13 half-moves
7 Bf7 win in 13 half-moves
8 Bg8 win in 15 half-moves
9 Bb1 draw
10 Bb3 draw
11 Bc4 draw
12 Bd5 loss in 2 half-moves