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

EGTB: win in 4 half-moves

# move score
1 Kff4 win in 3 half-moves
2 Kfg4 win in 3 half-moves
3 Ke2 win in 5 half-moves
4 Ke3 win in 5 half-moves
5 Ke4 win in 5 half-moves
6 Kff2 win in 5 half-moves
7 Bh1 win in 7 half-moves
8 Bh3 win in 7 half-moves
9 Kgf2 win in 7 half-moves
10 Kgf4 win in 7 half-moves
11 Kgg4 win in 7 half-moves
12 Kh2 win in 7 half-moves
13 Kh3 win in 7 half-moves
14 Kh4 win in 7 half-moves
15 Bf1 loss in 2 half-moves