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

EGTB: draw

# move score
1 Rb2 draw
2 Rc7 draw
3 Rd7 draw
4 Re7 draw
5 Kb5 loss in 10 half-moves
6 Ra7 loss in 8 half-moves
7 Kb6 loss in 6 half-moves
8 Rh7 loss in 6 half-moves
9 Ka4 loss in 2 half-moves
10 Ka6 loss in 2 half-moves
11 Kb4 loss in 2 half-moves
12 Rb3 loss in 2 half-moves
13 Rb4 loss in 2 half-moves
14 Rb5 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rb8 loss in 2 half-moves
17 Rf7 loss in 2 half-moves
18 Rg7 loss in 2 half-moves
19 Rb1 loss in 1 half-moves