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 Re6 draw
3 Rf6 draw
4 Rg6 draw
5 Rh6 draw
6 Ka1 loss in 2 half-moves
7 Ka4 loss in 2 half-moves
8 Ka5 loss in 2 half-moves
9 Kaa3 loss in 2 half-moves
10 Kab3 loss in 2 half-moves
11 Kb1 loss in 2 half-moves
12 Kb2 loss in 2 half-moves
13 Kb5 loss in 2 half-moves
14 Kba3 loss in 2 half-moves
15 Kbb3 loss in 2 half-moves
16 Kc3 loss in 2 half-moves
17 Kc4 loss in 2 half-moves
18 Kc5 loss in 2 half-moves
19 Ra6 loss in 2 half-moves
20 Rb5 loss in 2 half-moves
21 Rb7 loss in 2 half-moves
22 Rc6 loss in 2 half-moves
23 Rd6 loss in 2 half-moves