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 Kc6 draw
3 Kc7 draw
4 Ke6 draw
5 Kc8 loss in 26 half-moves
6 Ke7 loss in 22 half-moves
7 Ke8 loss in 20 half-moves
8 Kd8 loss in 16 half-moves