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

EGTB: win in 4 half-moves

# move score
1 Kd5 win in 3 half-moves
2 Kd6 loss in 36 half-moves
3 Ke7 loss in 36 half-moves
4 Kf6 loss in 36 half-moves
5 Kf7 loss in 36 half-moves
6 Kd7 loss in 32 half-moves
7 Ke5 loss in 2 half-moves
8 Kf5 loss in 2 half-moves