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

EGTB: win in 4 half-moves

# move score
1 Kb3 win in 3 half-moves
2 Kb4 win in 3 half-moves
3 Kc4 win in 3 half-moves
4 Kd4 win in 3 half-moves
5 Kb2 win in 5 half-moves
6 Kc2 win in 5 half-moves
7 Ke1 win in 5 half-moves
8 Ke3 win in 5 half-moves
9 Ked3 win in 5 half-moves
10 Kf1 win in 5 half-moves
11 Kf2 win in 5 half-moves
12 Kg2 win in 5 half-moves
13 Kg3 win in 5 half-moves
14 Kcd2 win in 7 half-moves
15 Kcd3 win in 7 half-moves
16 Kd1 win in 7 half-moves
17 Ked2 win in 7 half-moves
18 Kh2 win in 7 half-moves
19 Kf3 loss in 4 half-moves
20 Kg4 loss in 2 half-moves
21 Kh4 loss in 2 half-moves