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

EGTB: win in 4 half-moves

# move score
1 Rb6 win in 3 half-moves
2 Rb7 win in 3 half-moves
3 Rb8 win in 9 half-moves
4 Rb3 draw
5 Rb4 draw
6 Rb5 draw
7 Rc2 draw
8 Re2 draw
9 Rf2 draw
10 Rg2 draw
11 Kd5 loss in 2 half-moves
12 Kd6 loss in 2 half-moves
13 Kd7 loss in 2 half-moves
14 Ke5 loss in 2 half-moves
15 Ke7 loss in 2 half-moves
16 Kf5 loss in 2 half-moves
17 Kf6 loss in 2 half-moves
18 Kf7 loss in 2 half-moves
19 Kg6 loss in 2 half-moves
20 Kg7 loss in 2 half-moves
21 Kg8 loss in 2 half-moves
22 Kh6 loss in 2 half-moves
23 Kh8 loss in 2 half-moves
24 Ra2 loss in 2 half-moves
25 Rb1 loss in 2 half-moves
26 Rd2 loss in 2 half-moves
27 Rh2 loss in 2 half-moves