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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Rd7 win in 1 half-moves
3 Rb3 draw
4 Rb4 draw
5 Rb5 draw
6 Ka2 loss in 2 half-moves
7 Ka3 loss in 2 half-moves
8 Ka5 loss in 2 half-moves
9 Kb1 loss in 2 half-moves
10 Kb2 loss in 2 half-moves
11 Ra7 loss in 2 half-moves
12 Rb1 loss in 2 half-moves
13 Rb2 loss in 2 half-moves
14 Rb6 loss in 2 half-moves
15 Rc7 loss in 2 half-moves
16 Re7 loss in 2 half-moves
17 Rf7 loss in 2 half-moves
18 Rg7 loss in 2 half-moves
19 Rh7 loss in 2 half-moves
20 Kb3 loss in 1 half-moves
21 Kb4 loss in 1 half-moves
22 Kb5 loss in 1 half-moves