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

EGTB: win in 2 half-moves

# move score
1 Ra7 win in 1 half-moves
2 Rb1 win in 1 half-moves
3 Kc6 win in 3 half-moves
4 Kc8 win in 3 half-moves
5 Ke7 win in 3 half-moves
6 Ke8 win in 3 half-moves
7 Kf7 win in 3 half-moves
8 Kg7 win in 3 half-moves
9 Kg8 win in 3 half-moves
10 Rb6 win in 3 half-moves
11 Rb8 win in 3 half-moves
12 Kd6 win in 5 half-moves
13 Kd7 win in 5 half-moves
14 Kd8 win in 5 half-moves
15 Rb5 win in 5 half-moves
16 Kb6 draw
17 Kb8 draw
18 Rb2 loss in 2 half-moves
19 Rb3 loss in 2 half-moves
20 Rb4 loss in 2 half-moves