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 Ka7 draw
3 Kb7 draw
4 Kd4 draw
5 Kd5 draw
6 Ke4 draw
7 Ke6 draw
8 Kf6 draw
9 Ra1 draw
10 Rb5 draw
11 Rb6 draw
12 Rb7 draw
13 Rc1 draw
14 Rd1 draw
15 Re1 draw
16 Rf1 draw
17 Kb8 loss in 2 half-moves
18 Kd6 loss in 2 half-moves
19 Kf4 loss in 2 half-moves
20 Kf5 loss in 2 half-moves
21 Rb2 loss in 2 half-moves
22 Rb3 loss in 2 half-moves
23 Rb4 loss in 2 half-moves
24 Rg1 loss in 2 half-moves
25 Rh1 loss in 2 half-moves