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