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 Kc3 win in 3 half-moves
3 Kd3 win in 3 half-moves
4 Kd4 win in 3 half-moves
5 Ra3 win in 3 half-moves
6 Ra5 win in 3 half-moves
7 Rb4 win in 3 half-moves
8 Kf3 win in 5 half-moves
9 Kf4 win in 5 half-moves
10 Kb3 draw
11 Kb5 draw
12 Kc5 draw
13 Kg3 draw
14 Kh3 draw
15 Kh4 draw
16 Ra1 draw
17 Ra2 draw
18 Ra6 draw
19 Kd5 loss in 2 half-moves
20 Kf5 loss in 2 half-moves
21 Kg5 loss in 2 half-moves
22 Kh5 loss in 2 half-moves
23 Ra7 loss in 2 half-moves
24 Ra8 loss in 2 half-moves