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

EGTB: win in 4 half-moves

# move score
1 K7b8 win in 3 half-moves
2 K7d8 win in 3 half-moves
3 Kd6 win in 3 half-moves
4 Ke5 win in 7 half-moves
5 Ke6 win in 7 half-moves
6 Kf6 win in 7 half-moves
7 Kf4 draw
8 Kg5 draw
9 Kg6 draw
10 K8d8 loss in 8 half-moves
11 K7d7 loss in 4 half-moves
12 K8b8 loss in 4 half-moves
13 K8d7 loss in 4 half-moves
14 K7b7 loss in 2 half-moves
15 K8b7 loss in 2 half-moves
16 Kb6 loss in 2 half-moves
17 Kc6 loss in 2 half-moves
18 Ke4 loss in 2 half-moves
19 Kg4 loss in 2 half-moves