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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Ra3 win in 3 half-moves
3 Ra5 win in 3 half-moves
4 Ra4 win in 7 half-moves
5 Kc3 draw
6 Kc4 draw
7 Kc5 draw
8 Kd3 draw
9 Kd5 draw
10 Ke3 draw
11 Ke4 draw
12 Ke5 draw
13 Ra1 draw
14 Ra2 draw
15 Ra6 draw
16 Rc8 draw
17 Kc7 loss in 2 half-moves
18 Kc8 loss in 2 half-moves
19 Kd7 loss in 2 half-moves
20 Ke7 loss in 2 half-moves
21 Ke8 loss in 2 half-moves
22 Ra7 loss in 2 half-moves