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

EGTB: win in 4 half-moves

# move score
1 Kc5 win in 3 half-moves
2 Kcc7 win in 3 half-moves
3 Kd5 win in 3 half-moves
4 Kd7 win in 3 half-moves
5 Rb5 win in 3 half-moves
6 Ka7 win in 7 half-moves
7 Ka8 win in 7 half-moves
8 Kb8 win in 7 half-moves
9 Kbc7 win in 7 half-moves
10 Kc8 win in 7 half-moves
11 Kd6 win in 7 half-moves
12 Ka6 draw
13 Kb5 draw
14 Ra6 draw
15 Rb3 draw
16 Rb4 draw
17 Rb1 loss in 2 half-moves
18 Rb2 loss in 2 half-moves