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

EGTB: win in 4 half-moves

# move score
1 Rf7 win in 3 half-moves
2 K7d7 win in 5 half-moves
3 K8d8 win in 5 half-moves
4 K8d7 win in 7 half-moves
5 K8f7 win in 7 half-moves
6 Rg7 win in 7 half-moves
7 K7f7 win in 9 half-moves
8 Rh8 win in 9 half-moves
9 K8f8 draw
10 Rh4 draw
11 K7d8 loss in 2 half-moves
12 K7f8 loss in 2 half-moves
13 Kd6 loss in 2 half-moves
14 Ke6 loss in 2 half-moves
15 Kf6 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