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 Rd6 draw
3 Re6 draw
4 Rf6 draw
5 Ka1 loss in 2 half-moves
6 Ka2 loss in 2 half-moves
7 Kbb2 loss in 2 half-moves
8 Kbc2 loss in 2 half-moves
9 Kcb2 loss in 2 half-moves
10 Kcc2 loss in 2 half-moves
11 Kd1 loss in 2 half-moves
12 Kd2 loss in 2 half-moves
13 Ra6 loss in 2 half-moves
14 Rb2 loss in 2 half-moves
15 Rb3 loss in 2 half-moves
16 Rb4 loss in 2 half-moves
17 Rb5 loss in 2 half-moves
18 Rb7 loss in 2 half-moves
19 Rc6 loss in 2 half-moves
20 Rg6 loss in 2 half-moves
21 Rh6 loss in 2 half-moves