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

EGTB: win in 4 half-moves

# move score
1 Kb1 win in 3 half-moves
2 Kb2 win in 3 half-moves
3 Kc2 win in 3 half-moves
4 Kd1 win in 3 half-moves
5 Kd2 win in 3 half-moves
6 Ke3 win in 3 half-moves
7 Ke4 win in 3 half-moves
8 Ke7 win in 3 half-moves
9 Kee5 win in 3 half-moves
10 Kf3 win in 3 half-moves
11 Kfe5 win in 3 half-moves
12 Kff5 win in 3 half-moves
13 Kg3 win in 3 half-moves
14 Kg4 win in 3 half-moves
15 Kg5 win in 3 half-moves
16 Kf6 win in 7 half-moves
17 Kf7 win in 7 half-moves
18 Kef5 loss in 4 half-moves
19 Kd5 loss in 2 half-moves
20 Kd6 loss in 2 half-moves
21 Kd7 loss in 2 half-moves