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 Kh6 win in 3 half-moves
3 Rf8 win in 3 half-moves
4 Kf5 win in 7 half-moves
5 Kf8 win in 7 half-moves
6 Kg6 win in 7 half-moves
7 Kh5 win in 7 half-moves
8 Rh8 win in 7 half-moves
9 Kf4 win in 9 half-moves
10 Kh4 win in 11 half-moves
11 Kg4 draw
12 Kd7 loss in 2 half-moves
13 Kd8 loss in 2 half-moves
14 Ke7 loss in 2 half-moves
15 Kf7 loss in 2 half-moves
16 Rg6 loss in 2 half-moves
17 Rg7 loss in 2 half-moves