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 Ka1 win in 3 half-moves
3 Ka2 win in 3 half-moves
4 Ka3 win in 3 half-moves
5 Kb1 win in 3 half-moves
6 Kc1 win in 3 half-moves
7 Kc2 win in 3 half-moves
8 Rb3 win in 3 half-moves
9 Rb4 win in 3 half-moves
10 Kb3 win in 5 half-moves
11 Kc3 win in 5 half-moves
12 Ra5 draw
13 Kb4 loss in 2 half-moves
14 Kb6 loss in 2 half-moves
15 Kc4 loss in 2 half-moves
16 Kc6 loss in 2 half-moves
17 Kd4 loss in 2 half-moves
18 Kd5 loss in 2 half-moves
19 Kd6 loss in 2 half-moves
20 Rb6 loss in 2 half-moves
21 Rb7 loss in 2 half-moves