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

EGTB: win in 4 half-moves

# move score
1 Rb6 win in 3 half-moves
2 Ke6 win in 5 half-moves
3 Ke5 win in 7 half-moves
4 Rb7 win in 11 half-moves
5 Rb8 win in 21 half-moves
6 Kb6 draw
7 Kc6 draw
8 Kd5 draw
9 Kd6 draw
10 Kf6 draw
11 Kg4 draw
12 Kg5 draw
13 Kg6 draw
14 Ra5 draw
15 Kb4 loss in 2 half-moves
16 Kc4 loss in 2 half-moves
17 Kd4 loss in 2 half-moves
18 Ke4 loss in 2 half-moves
19 Kf4 loss in 2 half-moves
20 Rb1 loss in 2 half-moves
21 Rb2 loss in 2 half-moves
22 Rb3 loss in 2 half-moves
23 Rb4 loss in 2 half-moves