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

EGTB: win in 4 half-moves

# move score
1 Kg2 win in 3 half-moves
2 Kb4 win in 5 half-moves
3 Kc4 win in 5 half-moves
4 Kb2 win in 7 half-moves
5 Kb3 win in 7 half-moves
6 Kc1 win in 7 half-moves
7 Kcc2 win in 7 half-moves
8 Kd3 win in 7 half-moves
9 Kd4 win in 7 half-moves
10 Kdc2 win in 7 half-moves
11 Kdd2 win in 7 half-moves
12 Kde1 win in 7 half-moves
13 Kfe2 win in 7 half-moves
14 Ke3 win in 9 half-moves
15 Kf1 win in 9 half-moves
16 Kfe1 win in 9 half-moves
17 Kg1 win in 9 half-moves
18 Kcd2 win in 11 half-moves
19 Kde2 loss in 4 half-moves
20 Kf3 loss in 2 half-moves
21 Kg3 loss in 2 half-moves