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

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 Kb7 win in 3 half-moves
3 Rb8 win in 3 half-moves
4 Ke8 win in 5 half-moves
5 Kb5 win in 7 half-moves
6 Kc5 win in 7 half-moves
7 Kc8 win in 7 half-moves
8 Kcc7 win in 7 half-moves
9 Kd5 win in 7 half-moves
10 Ra6 win in 7 half-moves
11 Rc8 win in 7 half-moves
12 Kcd7 win in 9 half-moves
13 Kd6 win in 11 half-moves
14 Ra3 draw
15 Kdc7 loss in 2 half-moves
16 Kdd7 loss in 2 half-moves
17 Ke7 loss in 2 half-moves
18 Ra1 loss in 2 half-moves
19 Ra2 loss in 2 half-moves
20 Ra4 loss in 2 half-moves
21 Ra5 loss in 2 half-moves
22 Ra7 loss in 2 half-moves