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 Rb8 win in 3 half-moves
3 Kb8 win in 5 half-moves
4 Kc6 win in 5 half-moves
5 Kc8 win in 5 half-moves
6 Ke6 win in 5 half-moves
7 Ke8 win in 5 half-moves
8 Kf6 win in 5 half-moves
9 Kf7 win in 5 half-moves
10 Kf8 win in 5 half-moves
11 Rb3 win in 5 half-moves
12 Rb4 win in 5 half-moves
13 Rb5 win in 5 half-moves
14 Kb6 win in 7 half-moves
15 Ked6 win in 7 half-moves
16 Ked7 win in 7 half-moves
17 Ked8 win in 7 half-moves
18 Kcd6 draw
19 Kcd7 draw
20 Kcd8 draw
21 Ra7 draw
22 Rb1 loss in 2 half-moves
23 Rb2 loss in 2 half-moves