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

EGTB: win in 4 half-moves

# move score
1 Rb3 win in 3 half-moves
2 Rb5 win in 3 half-moves
3 Rb4 win in 5 half-moves
4 Rb1 win in 9 half-moves
5 Kc3 draw
6 Kc4 draw
7 Kc5 draw
8 Ke7 draw
9 Rb2 draw
10 Rc7 draw
11 Kd3 loss in 2 half-moves
12 Kd5 loss in 2 half-moves
13 Kd6 loss in 2 half-moves
14 Kd8 loss in 2 half-moves
15 Ke3 loss in 2 half-moves
16 Ke4 loss in 2 half-moves
17 Ke5 loss in 2 half-moves
18 Ke6 loss in 2 half-moves
19 Ke8 loss in 2 half-moves
20 Ra7 loss in 2 half-moves
21 Rb6 loss in 2 half-moves
22 Rb8 loss in 2 half-moves
23 Kc6 loss in 1 half-moves
24 Kc7 loss in 1 half-moves
25 Kc8 loss in 1 half-moves