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

EGTB: win in 6 half-moves

# move score
1 Kb7 win in 5 half-moves
2 Kc6 win in 5 half-moves
3 Kcc7 win in 9 half-moves
4 Kcd7 win in 9 half-moves
5 Kb8 win in 11 half-moves
6 Kd8 win in 11 half-moves
7 Ke5 win in 13 half-moves
8 Ke6 win in 13 half-moves
9 Kdc7 win in 17 half-moves
10 Kdd7 win in 17 half-moves
11 Ke7 win in 17 half-moves
12 Kc5 loss in 2 half-moves
13 Kd5 loss in 2 half-moves