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

EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Rc8 win in 3 half-moves
3 Ra8 win in 9 half-moves
4 Rd8 draw
5 Rh1 draw
6 Rh4 draw
7 Rh5 draw
8 Rh6 draw
9 Ka6 loss in 2 half-moves
10 Ka8 loss in 2 half-moves
11 Kb6 loss in 2 half-moves
12 Kb7 loss in 2 half-moves
13 Kb8 loss in 2 half-moves
14 Kc5 loss in 2 half-moves
15 Kc6 loss in 2 half-moves
16 Kc7 loss in 2 half-moves
17 Kd5 loss in 2 half-moves
18 Kd7 loss in 2 half-moves
19 Ke5 loss in 2 half-moves
20 Ke6 loss in 2 half-moves
21 Ke7 loss in 2 half-moves
22 Re8 loss in 2 half-moves
23 Rf8 loss in 2 half-moves
24 Rg8 loss in 2 half-moves
25 Rh2 loss in 2 half-moves
26 Rh3 loss in 2 half-moves
27 Rh7 loss in 2 half-moves