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

EGTB: win in 2 half-moves

# move score
1 Rb5 win in 1 half-moves
2 Rb6 win in 1 half-moves
3 Rb7 win in 1 half-moves
4 Kc2 draw
5 Rb1 draw
6 Rb2 draw
7 Rb4 draw
8 Kb2 loss in 2 half-moves
9 Kb4 loss in 2 half-moves
10 Kc4 loss in 2 half-moves
11 Kd2 loss in 2 half-moves
12 Kd3 loss in 2 half-moves
13 Kd4 loss in 2 half-moves
14 Ra3 loss in 2 half-moves
15 Rb8 loss in 2 half-moves