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

EGTB: win in 4 half-moves

# move score
1 Kb7 win in 3 half-moves
2 Kc7 win in 3 half-moves
3 Ra8 win in 5 half-moves
4 Rc8 win in 5 half-moves
5 Kc6 win in 9 half-moves
6 Ka5 draw
7 Ka6 draw
8 Ka7 draw
9 Kb5 draw
10 Kf6 draw
11 Rb8 draw
12 Rh8 draw
13 Kc5 loss in 2 half-moves
14 Ke6 loss in 2 half-moves
15 Ke7 loss in 2 half-moves
16 Ke8 loss in 2 half-moves
17 Kg6 loss in 2 half-moves
18 Kg7 loss in 2 half-moves
19 Kg8 loss in 2 half-moves
20 Rd8 loss in 2 half-moves
21 Re8 loss in 2 half-moves
22 Rg8 loss in 2 half-moves