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

EGTB: win in 2 half-moves

# move score
1 Rb3 win in 1 half-moves
2 Ra5 draw
3 Rb7 draw
4 Rb8 draw
5 Kb4 loss in 2 half-moves
6 Kb6 loss in 2 half-moves
7 Kc4 loss in 2 half-moves
8 Kc6 loss in 2 half-moves
9 Kd4 loss in 2 half-moves
10 Kd5 loss in 2 half-moves
11 Kd6 loss in 2 half-moves
12 Ke5 loss in 2 half-moves
13 Ke6 loss in 2 half-moves
14 Ke7 loss in 2 half-moves
15 Kf5 loss in 2 half-moves
16 Kf7 loss in 2 half-moves
17 Kg5 loss in 2 half-moves
18 Kg6 loss in 2 half-moves
19 Kg7 loss in 2 half-moves
20 Rb1 loss in 2 half-moves
21 Rb2 loss in 2 half-moves
22 Rb4 loss in 2 half-moves
23 Rb6 loss in 2 half-moves