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

EGTB: win in 4 half-moves

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