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

EGTB: win in 4 half-moves

# move score
1 Rb4 win in 3 half-moves
2 Kb4 win in 5 half-moves
3 Ra7 win in 7 half-moves
4 Ra6 win in 9 half-moves
5 Kc6 draw
6 Kc7 draw
7 Kd4 draw
8 Kd7 draw
9 Kdc5 draw
10 Kdd5 draw
11 Ke5 draw
12 Ke6 draw
13 Ke7 draw
14 Ra2 draw
15 Ra8 draw
16 Kb3 loss in 2 half-moves
17 Kb5 loss in 2 half-moves
18 Kc3 loss in 2 half-moves
19 Kcc5 loss in 2 half-moves
20 Kcd5 loss in 2 half-moves
21 Kd3 loss in 2 half-moves
22 Ra1 loss in 2 half-moves
23 Ra3 loss in 2 half-moves
24 Ra5 loss in 2 half-moves