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

EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Kc6 win in 7 half-moves
3 Kd6 win in 7 half-moves
4 Kf7 win in 7 half-moves
5 Rc8 win in 7 half-moves
6 Kd7 win in 9 half-moves
7 Kb7 win in 11 half-moves
8 Ra8 win in 11 half-moves
9 Kb6 draw
10 Rd8 draw
11 Rh8 draw
12 Kb8 loss in 6 half-moves
13 Kc8 loss in 6 half-moves
14 Kd8 loss in 6 half-moves
15 Rf7 loss in 4 half-moves
16 Ke5 loss in 2 half-moves
17 Ke6 loss in 2 half-moves
18 Ke7 loss in 2 half-moves
19 Kf5 loss in 2 half-moves
20 Kg5 loss in 2 half-moves
21 Kg6 loss in 2 half-moves
22 Kg7 loss in 2 half-moves
23 Re8 loss in 2 half-moves
24 Rg8 loss in 2 half-moves