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

EGTB: win in 4 half-moves

# move score
1 Kb1 win in 3 half-moves
2 Kb2 win in 3 half-moves
3 Kc2 win in 3 half-moves
4 Kc7 win in 3 half-moves
5 Kd1 win in 3 half-moves
6 Kd2 win in 3 half-moves
7 Kd7 win in 3 half-moves
8 Kd8 win in 3 half-moves
9 Ke2 win in 3 half-moves
10 Ke3 win in 3 half-moves
11 Kf3 win in 3 half-moves
12 Kg2 win in 3 half-moves
13 Kg3 win in 3 half-moves
14 Kb7 win in 7 half-moves
15 Kb8 win in 7 half-moves
16 Ke1 win in 7 half-moves
17 Kf1 win in 7 half-moves
18 Kg1 win in 7 half-moves