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

EGTB: win in 4 half-moves

# move score
1 Kg5 win in 3 half-moves
2 Kg6 win in 3 half-moves
3 Khg7 win in 3 half-moves
4 Kf7 win in 11 half-moves
5 Kgg7 win in 11 half-moves
6 Kf8 win in 13 half-moves
7 Kh5 win in 13 half-moves
8 Kgh7 draw
9 Khh7 draw
10 Rh7 loss in 2 half-moves