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

EGTB: win in 4 half-moves

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