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

EGTB: win in 4 half-moves

# move score
1 Rh6 win in 3 half-moves
2 Rg8 win in 7 half-moves
3 Rf8 win in 9 half-moves
4 Kb5 draw
5 Kb6 draw
6 Kc6 draw
7 Kd5 draw
8 Kd6 draw
9 Ke5 draw
10 Ke6 draw
11 Kf6 draw
12 Kg4 draw
13 Kg5 draw
14 Kg6 draw
15 Ra8 draw
16 Rc8 draw
17 Rh5 draw
18 Rh7 draw
19 Kb4 loss in 2 half-moves
20 Kc4 loss in 2 half-moves
21 Kd4 loss in 2 half-moves
22 Ke4 loss in 2 half-moves
23 Kf4 loss in 2 half-moves
24 Rb8 loss in 2 half-moves
25 Rd8 loss in 2 half-moves
26 Re8 loss in 2 half-moves
27 Rh1 loss in 2 half-moves
28 Rh2 loss in 2 half-moves
29 Rh3 loss in 2 half-moves
30 Rh4 loss in 2 half-moves