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

EGTB: win in 2 half-moves

# move score
1 Rb7 win in 1 half-moves
2 Ra2 win in 5 half-moves
3 Kb3 draw
4 Ka1 loss in 2 half-moves
5 Ka4 loss in 2 half-moves
6 Kaa2 loss in 2 half-moves
7 Kb4 loss in 2 half-moves
8 Kba2 loss in 2 half-moves
9 Kc1 loss in 2 half-moves
10 Kc2 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
15 Rb8 loss in 2 half-moves
16 Rc2 loss in 2 half-moves
17 Rd2 loss in 2 half-moves
18 Re2 loss in 2 half-moves
19 Rf2 loss in 2 half-moves
20 Rg2 loss in 2 half-moves
21 Rh2 loss in 2 half-moves