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

EGTB: win in 4 half-moves

# move score
1 K7f7 win in 3 half-moves
2 K8f7 win in 3 half-moves
3 Rf7 win in 3 half-moves
4 Rg8 win in 5 half-moves
5 K8f8 draw
6 Rg1 draw
7 Rg2 draw
8 Rg3 draw
9 Rg4 draw
10 Rh7 draw
11 K7d7 loss in 2 half-moves
12 K7d8 loss in 2 half-moves
13 K7f8 loss in 2 half-moves
14 K8d7 loss in 2 half-moves
15 K8d8 loss in 2 half-moves
16 Kd6 loss in 2 half-moves
17 Ke6 loss in 2 half-moves
18 Kf6 loss in 2 half-moves
19 Rg5 loss in 2 half-moves
20 Rg6 loss in 2 half-moves