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 Kc4 win in 3 half-moves
3 Kb2 win in 5 half-moves
4 Kb3 win in 5 half-moves
5 Kc2 win in 5 half-moves
6 Kcd3 win in 5 half-moves
7 Kcd4 win in 5 half-moves
8 Kd2 win in 5 half-moves
9 Ked4 win in 5 half-moves
10 Kf4 win in 5 half-moves
11 Kf5 win in 5 half-moves
12 Kg4 win in 5 half-moves
13 Kg5 win in 5 half-moves
14 Kg6 win in 5 half-moves
15 Kh4 win in 5 half-moves
16 Kh6 win in 5 half-moves
17 Ke3 win in 7 half-moves
18 Kf3 win in 7 half-moves
19 Ked3 loss in 4 half-moves
20 Kd5 loss in 2 half-moves
21 Ke5 loss in 2 half-moves