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

EGTB: win in 2 half-moves

# move score
1 Kc6 win in 1 half-moves
2 Kd6 win in 1 half-moves
3 Rb1 win in 1 half-moves
4 Rb2 win in 1 half-moves
5 Rb3 win in 1 half-moves
6 Ra7 draw
7 Rb6 draw
8 Kb8 loss in 2 half-moves
9 Kc8 loss in 2 half-moves
10 Kd7 loss in 2 half-moves
11 Kd8 loss in 2 half-moves
12 Rb4 loss in 2 half-moves
13 Rb5 loss in 2 half-moves
14 Rb8 loss in 2 half-moves
15 Kb6 loss in 1 half-moves