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 Kb8 win in 7 half-moves
3 Ke7 win in 7 half-moves
4 Ke8 win in 7 half-moves
5 Rb7 win in 7 half-moves
6 Ka7 draw
7 Kb7 draw
8 Ke6 draw
9 Kf6 draw
10 Kf8 draw
11 Kg6 draw
12 Kg7 draw
13 Kg8 draw
14 Ra5 draw
15 Rb4 draw
16 Rb6 draw
17 Rc5 draw
18 Rd5 draw
19 Rh5 draw
20 Rb1 loss in 2 half-moves
21 Rb2 loss in 2 half-moves
22 Rb3 loss in 2 half-moves
23 Re5 loss in 2 half-moves
24 Rf5 loss in 2 half-moves
25 Rg5 loss in 2 half-moves