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

EGTB: win in 2 half-moves

# move score
1 Ra5 win in 1 half-moves
2 Rb2 win in 1 half-moves
3 Kb4 draw
4 Kb6 loss in 2 half-moves
5 Kc3 loss in 2 half-moves
6 Kc6 loss in 2 half-moves
7 Kcc4 loss in 2 half-moves
8 Kcd5 loss in 2 half-moves
9 Kd3 loss in 2 half-moves
10 Kd6 loss in 2 half-moves
11 Kdc4 loss in 2 half-moves
12 Kdd5 loss in 2 half-moves
13 Ke3 loss in 2 half-moves
14 Ke4 loss in 2 half-moves
15 Ke5 loss in 2 half-moves
16 Rb1 loss in 2 half-moves
17 Rb3 loss in 2 half-moves
18 Rb4 loss in 2 half-moves
19 Rb6 loss in 2 half-moves
20 Rb7 loss in 2 half-moves
21 Rb8 loss in 2 half-moves