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

EGTB: win in 2 half-moves

# move score
1 Rb1 win in 1 half-moves
2 Kb5 win in 9 half-moves
3 Rc6 win in 9 half-moves
4 Kb3 win in 11 half-moves
5 Kb4 win in 11 half-moves
6 Kc3 loss in 2 half-moves
7 Kc6 loss in 2 half-moves
8 Kc7 loss in 2 half-moves
9 Kcc5 loss in 2 half-moves
10 Kcd5 loss in 2 half-moves
11 Kd3 loss in 2 half-moves
12 Kd4 loss in 2 half-moves
13 Kd7 loss in 2 half-moves
14 Kdc5 loss in 2 half-moves
15 Kdd5 loss in 2 half-moves
16 Ke5 loss in 2 half-moves
17 Ke6 loss in 2 half-moves
18 Ke7 loss in 2 half-moves
19 Ra6 loss in 2 half-moves
20 Rb2 loss in 2 half-moves
21 Rb3 loss in 2 half-moves
22 Rb4 loss in 2 half-moves
23 Rb5 loss in 2 half-moves
24 Rb7 loss in 2 half-moves
25 Rb8 loss in 2 half-moves