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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Rf3 draw
3 Ka1 loss in 2 half-moves
4 Ka2 loss in 2 half-moves
5 Kbb2 loss in 2 half-moves
6 Kbc2 loss in 2 half-moves
7 Kcb2 loss in 2 half-moves
8 Kcc2 loss in 2 half-moves
9 Kd1 loss in 2 half-moves
10 Kd2 loss in 2 half-moves
11 Ra3 loss in 2 half-moves
12 Rb2 loss in 2 half-moves
13 Rb5 loss in 2 half-moves
14 Rb6 loss in 2 half-moves
15 Rb7 loss in 2 half-moves
16 Rb8 loss in 2 half-moves
17 Rc3 loss in 2 half-moves
18 Rd3 loss in 2 half-moves
19 Re3 loss in 2 half-moves
20 Rg3 loss in 2 half-moves
21 Rh3 loss in 2 half-moves