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

EGTB: win in 4 half-moves

# move score
1 Rb5 win in 3 half-moves
2 Rb7 win in 3 half-moves
3 Ka5 win in 5 half-moves
4 Ka7 win in 5 half-moves
5 Kb6 win in 5 half-moves
6 Ke7 win in 5 half-moves
7 Kf6 win in 5 half-moves
8 Ra3 win in 5 half-moves
9 Rb4 win in 5 half-moves
10 Rb6 win in 5 half-moves
11 Rb8 win in 5 half-moves
12 Kd5 win in 7 half-moves
13 Kd6 win in 7 half-moves
14 Kd7 win in 7 half-moves
15 Kf7 win in 7 half-moves
16 Kb5 win in 13 half-moves
17 Kb7 win in 13 half-moves
18 Ke5 draw
19 Kf5 draw
20 Rc3 draw
21 Rh3 draw
22 Rb1 loss in 2 half-moves
23 Rb2 loss in 2 half-moves
24 Rd3 loss in 2 half-moves
25 Re3 loss in 2 half-moves
26 Rf3 loss in 2 half-moves
27 Rg3 loss in 2 half-moves