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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Rb5 win in 3 half-moves
3 Rb7 win in 3 half-moves
4 Ke7 win in 5 half-moves
5 Ked7 win in 5 half-moves
6 Rb8 win in 5 half-moves
7 Kb7 draw
8 Kc7 draw
9 Kcd6 draw
10 Kcd7 draw
11 Ked6 draw
12 Kf6 draw
13 Kf7 draw
14 Ra6 draw
15 Kb5 loss in 2 half-moves
16 Kc5 loss in 2 half-moves
17 Kcd5 loss in 2 half-moves
18 Ke5 loss in 2 half-moves
19 Ked5 loss in 2 half-moves
20 Kf5 loss in 2 half-moves
21 Rb1 loss in 2 half-moves
22 Rb2 loss in 2 half-moves
23 Rb3 loss in 2 half-moves