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

EGTB: draw

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