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 Rb6 win in 7 half-moves
3 Rg1 draw
4 Kb5 loss in 2 half-moves
5 Kb6 loss in 2 half-moves
6 Kb7 loss in 2 half-moves
7 Kcc5 loss in 2 half-moves
8 Kcc7 loss in 2 half-moves
9 Kcd5 loss in 2 half-moves
10 Kcd7 loss in 2 half-moves
11 Kdc5 loss in 2 half-moves
12 Kdc7 loss in 2 half-moves
13 Kdd5 loss in 2 half-moves
14 Kdd7 loss in 2 half-moves
15 Ke5 loss in 2 half-moves
16 Ke6 loss in 2 half-moves
17 Ke7 loss in 2 half-moves
18 Ra1 loss in 2 half-moves
19 Rb2 loss in 2 half-moves
20 Rb3 loss in 2 half-moves
21 Rb4 loss in 2 half-moves
22 Rb5 loss in 2 half-moves
23 Rb7 loss in 2 half-moves
24 Rc1 loss in 2 half-moves
25 Rd1 loss in 2 half-moves
26 Re1 loss in 2 half-moves
27 Rf1 loss in 2 half-moves
28 Rh1 loss in 2 half-moves