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

EGTB: win in 4 half-moves

# move score
1 Kef7 win in 3 half-moves
2 Kff7 win in 3 half-moves
3 Kg7 draw
4 Kg8 loss in 6 half-moves
5 Kd8 loss in 2 half-moves
6 Kee7 loss in 2 half-moves
7 Kfe7 loss in 2 half-moves
8 Kd7 loss in 1 half-moves