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

EGTB: win in 2 half-moves

# move score
1 Kh4 win in 1 half-moves
2 Kh5 win in 1 half-moves
3 Kh6 win in 1 half-moves
4 Kf4 loss in 48 half-moves
5 Kf5 loss in 48 half-moves
6 Kg4 loss in 48 half-moves
7 Kg6 loss in 48 half-moves
8 Kf6 loss in 46 half-moves