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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Ka5 draw
3 Ka7 draw
4 Kb7 draw
5 Kd5 draw
6 Ke5 draw
7 Kf7 draw
8 Rb4 draw
9 Rb5 draw
10 Rc6 draw
11 Rd6 draw
12 Rb1 loss in 2 half-moves
13 Rb2 loss in 2 half-moves
14 Rb3 loss in 2 half-moves
15 Rb7 loss in 2 half-moves
16 Kb5 loss in 1 half-moves
17 Kd6 loss in 1 half-moves
18 Kd7 loss in 1 half-moves
19 Ke7 loss in 1 half-moves
20 Kf5 loss in 1 half-moves
21 Kf6 loss in 1 half-moves