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

EGTB: win in 4 half-moves

# move score
1 Ka6 win in 3 half-moves
2 Kb6 win in 3 half-moves
3 Kb7 win in 3 half-moves
4 Kb8 win in 7 half-moves
5 Kc6 win in 9 half-moves
6 Kc7 win in 9 half-moves
7 Ka8 win in 15 half-moves
8 Kc5 draw
9 Kd5 draw
10 Kd7 draw
11 Ke7 draw
12 Ke5 loss in 2 half-moves
13 Ke6 loss in 1 half-moves