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

EGTB: win in 4 half-moves

# move score
1 K8d7 win in 3 half-moves
2 Rf8 win in 3 half-moves
3 K7d7 win in 7 half-moves
4 K7d8 win in 7 half-moves
5 K8d8 win in 7 half-moves
6 Kd6 win in 7 half-moves
7 Kf6 win in 11 half-moves
8 K7f7 draw
9 K7f8 draw
10 K8f8 draw
11 Ke6 draw
12 Rg8 draw
13 Rh4 draw
14 Rh7 draw
15 K8f7 loss in 2 half-moves
16 Rh1 loss in 2 half-moves
17 Rh2 loss in 2 half-moves
18 Rh3 loss in 2 half-moves
19 Rh5 loss in 2 half-moves
20 Rh6 loss in 2 half-moves