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

EGTB: win in 4 half-moves

# move score
1 Kd6 win in 3 half-moves
2 Ke6 loss in 28 half-moves
3 Kf6 loss in 26 half-moves
4 Kf7 loss in 24 half-moves
5 Kf8 loss in 22 half-moves
6 Kd7 loss in 20 half-moves
7 Kd8 loss in 20 half-moves
8 Ke8 loss in 18 half-moves