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 Kd4 win in 3 half-moves
4 Kb2 win in 7 half-moves
5 Kb3 win in 7 half-moves
6 Kd3 win in 7 half-moves
7 Ke1 win in 7 half-moves
8 Ke2 win in 7 half-moves
9 Ke3 win in 7 half-moves
10 Kf1 win in 7 half-moves
11 Kf3 win in 7 half-moves
12 Kg1 win in 7 half-moves
13 Kg2 win in 7 half-moves
14 Kg3 win in 7 half-moves
15 Kg4 win in 7 half-moves
16 Kh4 win in 7 half-moves
17 Kc2 win in 11 half-moves
18 Kd2 win in 11 half-moves
19 Kg5 loss in 2 half-moves
20 Kg6 loss in 2 half-moves
21 Kh6 loss in 2 half-moves