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

EGTB: win in 4 half-moves

# move score
1 Kf6 win in 3 half-moves
2 Kd7 loss in 32 half-moves
3 Kd8 loss in 32 half-moves
4 Ke8 loss in 24 half-moves
5 Kf7 loss in 24 half-moves
6 Kf8 loss in 18 half-moves
7 Kd6 loss in 2 half-moves
8 Ke6 loss in 2 half-moves