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

EGTB: win in 4 half-moves

# move score
1 Kc7 win in 3 half-moves
2 Kd7 win in 3 half-moves
3 Ke7 win in 3 half-moves
4 Ra7 win in 3 half-moves
5 Rc8 win in 9 half-moves
6 Kc8 draw
7 Kd4 draw
8 Kd5 draw
9 Ke5 draw
10 Ke8 draw
11 Kf4 draw
12 Kf5 draw
13 Ra4 draw
14 Ra5 draw
15 Ra6 draw
16 Rb8 draw
17 Kd3 loss in 2 half-moves
18 Ke3 loss in 2 half-moves
19 Kf3 loss in 2 half-moves
20 Ra1 loss in 2 half-moves
21 Ra2 loss in 2 half-moves
22 Ra3 loss in 2 half-moves