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 Rb5 win in 3 half-moves
3 Rb7 win in 3 half-moves
4 Rb8 win in 5 half-moves
5 Rb6 draw
6 Rc1 draw
7 Rd1 draw
8 Re1 draw
9 Rh1 draw
10 Kb7 loss in 2 half-moves
11 Kb8 loss in 2 half-moves
12 Kc5 loss in 2 half-moves
13 Kc6 loss in 2 half-moves
14 Kcc7 loss in 2 half-moves
15 Kcd7 loss in 2 half-moves
16 Kd5 loss in 2 half-moves
17 Kd8 loss in 2 half-moves
18 Kdc7 loss in 2 half-moves
19 Kdd7 loss in 2 half-moves
20 Ke5 loss in 2 half-moves
21 Ke6 loss in 2 half-moves
22 Ke7 loss in 2 half-moves
23 Ra1 loss in 2 half-moves
24 Rb2 loss in 2 half-moves
25 Rb3 loss in 2 half-moves
26 Rf1 loss in 2 half-moves
27 Rg1 loss in 2 half-moves