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

EGTB: win in 4 half-moves

# move score
1 Kb5 win in 3 half-moves
2 Rb5 win in 3 half-moves
3 Kc7 win in 5 half-moves
4 Kc8 win in 5 half-moves
5 Kd5 win in 5 half-moves
6 Kdc6 win in 5 half-moves
7 Ra7 win in 5 half-moves
8 Kd8 win in 9 half-moves
9 Ke7 win in 9 half-moves
10 Ke8 win in 9 half-moves
11 Kdd6 draw
12 Ke6 draw
13 Ra2 draw
14 Kb4 loss in 2 half-moves
15 Kb6 loss in 2 half-moves
16 Kc4 loss in 2 half-moves
17 Kcc6 loss in 2 half-moves
18 Kcd6 loss in 2 half-moves
19 Kd4 loss in 2 half-moves
20 Ra1 loss in 2 half-moves
21 Ra3 loss in 2 half-moves
22 Ra4 loss in 2 half-moves
23 Ra6 loss in 2 half-moves
24 Ra8 loss in 2 half-moves