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

EGTB: win in 4 half-moves

# move score
1 Bg8 win in 3 half-moves
2 K6f6 win in 5 half-moves
3 K6f7 win in 5 half-moves
4 Kg5 win in 5 half-moves
5 K6h6 win in 7 half-moves
6 Kh5 win in 7 half-moves
7 K7f6 win in 9 half-moves
8 K7f7 win in 9 half-moves
9 K7h6 win in 9 half-moves
10 Kf5 win in 9 half-moves
11 Kf8 win in 9 half-moves
12 Kg8 win in 9 half-moves
13 Kh8 win in 9 half-moves