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

EGTB: draw

# move score
1 Rb7 draw
2 Kc8 loss in 6 half-moves
3 Rc8 loss in 6 half-moves
4 Ra8 loss in 4 half-moves
5 Kc7 loss in 2 half-moves
6 Kd7 loss in 2 half-moves
7 Ke7 loss in 2 half-moves
8 Ke8 loss in 2 half-moves
9 Rb1 loss in 2 half-moves
10 Rb2 loss in 2 half-moves
11 Rb3 loss in 2 half-moves
12 Rb4 loss in 2 half-moves
13 Rb5 loss in 2 half-moves
14 Rb6 loss in 2 half-moves