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

EGTB: win in 4 half-moves

# move score
1 Kb7 win in 3 half-moves
2 Kc7 win in 3 half-moves
3 Kd7 win in 3 half-moves
4 Ra4 win in 3 half-moves
5 Ra6 win in 3 half-moves
6 Ra7 win in 3 half-moves
7 Kb6 win in 5 half-moves
8 Rb8 win in 5 half-moves
9 Kb8 win in 9 half-moves
10 Kd8 win in 17 half-moves
11 Kb5 win in 23 half-moves
12 Kc6 draw
13 Kd5 draw
14 Kd6 draw
15 Ra3 draw
16 Ra5 draw
17 Kb4 loss in 2 half-moves
18 Kc4 loss in 2 half-moves
19 Kd4 loss in 2 half-moves
20 Ra1 loss in 2 half-moves
21 Ra2 loss in 2 half-moves