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

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 Kb7 win in 11 half-moves
3 Ka6 win in 13 half-moves
4 Kb8 win in 19 half-moves
5 Kd7 win in 19 half-moves
6 Ke7 win in 19 half-moves
7 Ka8 draw
8 Kd8 draw
9 Kf7 draw
10 Kf8 draw