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

EGTB: win in 4 half-moves

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