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

EGTB: win in 6 half-moves

# move score
1 Rf7 win in 5 half-moves
2 Kb7 win in 9 half-moves
3 Kb6 win in 11 half-moves
4 Kf7 win in 11 half-moves
5 Ka7 draw
6 Kf5 draw
7 Ra8 draw
8 Ka5 loss in 2 half-moves
9 Kb5 loss in 2 half-moves
10 Ke5 loss in 2 half-moves
11 Ke6 loss in 2 half-moves
12 Ke7 loss in 2 half-moves
13 Kg5 loss in 2 half-moves
14 Kg6 loss in 2 half-moves
15 Kg7 loss in 2 half-moves
16 Rb8 loss in 2 half-moves
17 Rc8 loss in 2 half-moves
18 Rd8 loss in 2 half-moves
19 Re8 loss in 2 half-moves
20 Rg8 loss in 2 half-moves
21 Rh8 loss in 2 half-moves