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

EGTB: win in 4 half-moves

# move score
1 Kb4 win in 3 half-moves
2 Rc6 win in 3 half-moves
3 Kc4 win in 7 half-moves
4 Ra3 win in 7 half-moves
5 Kc3 win in 9 half-moves
6 Kc6 win in 9 half-moves
7 Ra7 win in 9 half-moves
8 Ra8 win in 9 half-moves
9 Ka2 draw
10 Ka3 draw
11 Ka4 draw
12 Kb2 draw
13 Kc2 draw
14 Ra1 draw
15 Rb6 draw
16 Kc5 loss in 2 half-moves
17 Kc7 loss in 2 half-moves
18 Kd5 loss in 2 half-moves
19 Kd7 loss in 2 half-moves
20 Ke5 loss in 2 half-moves
21 Ke6 loss in 2 half-moves
22 Ke7 loss in 2 half-moves
23 Ra2 loss in 2 half-moves
24 Ra4 loss in 2 half-moves
25 Ra5 loss in 2 half-moves