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 Rb3 draw
3 Rb4 draw
4 Rc5 draw
5 Ka2 loss in 2 half-moves
6 Kb1 loss in 2 half-moves
7 Ke1 loss in 2 half-moves
8 Ke2 loss in 2 half-moves
9 Kf2 loss in 2 half-moves
10 Kg1 loss in 2 half-moves
11 Kg2 loss in 2 half-moves
12 Ra5 loss in 2 half-moves
13 Rb1 loss in 2 half-moves
14 Rb6 loss in 2 half-moves
15 Rb7 loss in 2 half-moves
16 Rd5 loss in 2 half-moves
17 Re5 loss in 2 half-moves
18 Rf5 loss in 2 half-moves
19 Rg5 loss in 2 half-moves
20 Rh5 loss in 2 half-moves
21 Kb2 loss in 1 half-moves
22 Rb2 loss in 1 half-moves