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

EGTB: win in 8 half-moves

# move score
1 Rb7 win in 7 half-moves
2 Kb2 win in 11 half-moves
3 Kb1 win in 13 half-moves
4 Kb6 draw
5 Kb7 draw
6 Kb8 draw
7 Kc2 draw
8 Kc6 draw
9 Kc8 draw
10 Kd6 draw
11 Kd7 draw
12 Kd8 draw
13 Ra1 draw
14 Ra3 draw
15 Ra4 draw
16 Ra5 draw
17 Ra6 draw
18 Ra8 draw
19 Kd1 loss in 2 half-moves
20 Kd2 loss in 2 half-moves
21 Ra2 loss in 2 half-moves