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

EGTB: win in 4 half-moves

# move score
1 Rc4 win in 3 half-moves
2 Kc7 win in 5 half-moves
3 Kd7 win in 5 half-moves
4 Kc8 win in 9 half-moves
5 Rb4 win in 9 half-moves
6 Kc5 win in 11 half-moves
7 Kc3 draw
8 Kc4 draw
9 Kd3 draw
10 Kd5 draw
11 Ke3 draw
12 Ra1 draw
13 Ra2 draw
14 Ra3 draw
15 Ra8 draw
16 Ke4 loss in 2 half-moves
17 Ke5 loss in 2 half-moves
18 Ke7 loss in 2 half-moves
19 Ke8 loss in 2 half-moves
20 Ra5 loss in 2 half-moves
21 Ra6 loss in 2 half-moves
22 Ra7 loss in 2 half-moves