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

EGTB: win in 4 half-moves

# move score
1 Rh8 win in 3 half-moves
2 Ra8 draw
3 Rb1 draw
4 Rb5 draw
5 Rb6 draw
6 Rb7 draw
7 Rf8 draw
8 Rg8 draw
9 Ke6 loss in 2 half-moves
10 Ke7 loss in 2 half-moves
11 Ke8 loss in 2 half-moves
12 Kff6 loss in 2 half-moves
13 Kff8 loss in 2 half-moves
14 Kfg6 loss in 2 half-moves
15 Kfg8 loss in 2 half-moves
16 Kgf6 loss in 2 half-moves
17 Kgf8 loss in 2 half-moves
18 Kgg6 loss in 2 half-moves
19 Kgg8 loss in 2 half-moves
20 Kh6 loss in 2 half-moves
21 Kh7 loss in 2 half-moves
22 Kh8 loss in 2 half-moves
23 Rb2 loss in 2 half-moves
24 Rb3 loss in 2 half-moves
25 Rb4 loss in 2 half-moves
26 Rc8 loss in 2 half-moves
27 Rd8 loss in 2 half-moves
28 Re8 loss in 2 half-moves