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

EGTB: win in 4 half-moves

# move score
1 Kb2 win in 3 half-moves
2 Kb3 win in 3 half-moves
3 Kb4 win in 3 half-moves
4 Kc2 win in 3 half-moves
5 Kc4 win in 3 half-moves
6 Kd1 win in 3 half-moves
7 Kd3 win in 3 half-moves
8 Kd4 win in 3 half-moves
9 Ked2 win in 3 half-moves
10 Kee2 win in 3 half-moves
11 Kef2 win in 3 half-moves
12 Kf1 win in 3 half-moves
13 Kg2 win in 3 half-moves
14 Kg3 win in 3 half-moves
15 Ke3 win in 5 half-moves
16 Kcd2 win in 7 half-moves
17 Kfe2 win in 7 half-moves
18 Kff2 win in 7 half-moves
19 Ke4 loss in 2 half-moves
20 Kf4 loss in 2 half-moves
21 Kg4 loss in 2 half-moves