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

EGTB: win in 4 half-moves

# move score
1 Kf5 win in 3 half-moves
2 Kf6 win in 3 half-moves
3 Ke5 draw
4 Ke7 draw
5 Kf7 draw
6 Kd7 loss in 40 half-moves
7 Kd6 loss in 38 half-moves
8 Kd5 loss in 34 half-moves