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 Ra7 win in 3 half-moves
4 Rb8 win in 3 half-moves
5 Kb3 win in 5 half-moves
6 Kb8 win in 5 half-moves
7 Kc3 win in 5 half-moves
8 Kb4 win in 7 half-moves
9 Kb5 win in 9 half-moves
10 Kd8 win in 9 half-moves
11 Kc5 draw
12 Kd3 draw
13 Kd4 draw
14 Ra1 draw
15 Ra4 draw
16 Ra5 draw
17 Ra6 draw
18 Kd5 loss in 2 half-moves
19 Kd7 loss in 2 half-moves
20 Ra2 loss in 2 half-moves
21 Ra3 loss in 2 half-moves