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

EGTB: win in 4 half-moves

# move score
1 Ka7 win in 3 half-moves
2 Ka8 win in 3 half-moves
3 Kb4 win in 3 half-moves
4 Rb4 win in 3 half-moves
5 Kb7 win in 9 half-moves
6 Kc7 win in 9 half-moves
7 Ra8 win in 9 half-moves
8 Kc8 win in 11 half-moves
9 Kd3 draw
10 Kd4 draw
11 Ra2 draw
12 Kb3 loss in 2 half-moves
13 Kb5 loss in 2 half-moves
14 Kc3 loss in 2 half-moves
15 Kc5 loss in 2 half-moves
16 Kd5 loss in 2 half-moves
17 Ra1 loss in 2 half-moves
18 Ra3 loss in 2 half-moves
19 Ra5 loss in 2 half-moves
20 Ra6 loss in 2 half-moves
21 Ra7 loss in 2 half-moves