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

EGTB: win in 4 half-moves

# move score
1 Kc7 win in 3 half-moves
2 Kd7 win in 3 half-moves
3 Ra6 win in 3 half-moves
4 Ra7 win in 3 half-moves
5 Kb6 win in 5 half-moves
6 Ke7 win in 5 half-moves
7 Ka6 win in 9 half-moves
8 Rb8 win in 13 half-moves
9 Kc6 win in 15 half-moves
10 Kc8 win in 17 half-moves
11 Ka4 draw
12 Ka5 draw
13 Kc5 draw
14 Ke8 draw
15 Ra4 draw
16 Ra5 draw
17 Kb4 loss in 2 half-moves
18 Kc4 loss in 2 half-moves
19 Ra1 loss in 2 half-moves
20 Ra2 loss in 2 half-moves
21 Ra3 loss in 2 half-moves
22 Rc8 loss in 2 half-moves