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 3 half-moves
4 Rb4 draw
5 Rb5 draw
6 Rc3 draw
7 Rd3 draw
8 Re3 draw
9 Rf3 draw
10 Ke6 loss in 2 half-moves
11 Ke7 loss in 2 half-moves
12 Ke8 loss in 2 half-moves
13 Kf6 loss in 2 half-moves
14 Kff8 loss in 2 half-moves
15 Kfg7 loss in 2 half-moves
16 Kg6 loss in 2 half-moves
17 Kgf8 loss in 2 half-moves
18 Kgg7 loss in 2 half-moves
19 Kh7 loss in 2 half-moves
20 Kh8 loss in 2 half-moves
21 Ra3 loss in 2 half-moves
22 Rb1 loss in 2 half-moves
23 Rb2 loss in 2 half-moves
24 Rg3 loss in 2 half-moves
25 Rh3 loss in 2 half-moves