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

EGTB: win in 4 half-moves

# move score
1 Kc8 win in 3 half-moves
2 Kd6 win in 3 half-moves
3 Kd8 win in 3 half-moves
4 Rb6 win in 3 half-moves
5 Rb8 win in 3 half-moves
6 Ka5 win in 5 half-moves
7 Ka6 win in 5 half-moves
8 Kb4 win in 5 half-moves
9 Kc5 win in 5 half-moves
10 Ra7 win in 5 half-moves
11 Rc7 win in 5 half-moves
12 Kc7 win in 9 half-moves
13 Ke6 win in 13 half-moves
14 Ke7 win in 13 half-moves
15 Ka4 win in 15 half-moves
16 Ke8 win in 15 half-moves
17 Kb6 win in 17 half-moves
18 Kbc6 draw
19 Kdc6 draw
20 Kc4 loss in 2 half-moves