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 Kff6 draw
3 Kfg4 draw
4 Kfg6 draw
5 Kgf6 draw
6 Kgg4 draw
7 Kgg6 draw
8 Kh4 draw
9 Kh5 draw
10 Kh6 draw
11 Ra3 draw
12 Ra7 draw
13 Rf8 draw
14 Rg8 draw
15 Ke4 loss in 2 half-moves
16 Ke5 loss in 2 half-moves
17 Ke6 loss in 2 half-moves
18 Kff4 loss in 2 half-moves
19 Kgf4 loss in 2 half-moves
20 Ra1 loss in 2 half-moves
21 Ra2 loss in 2 half-moves
22 Ra4 loss in 2 half-moves
23 Ra5 loss in 2 half-moves
24 Ra6 loss in 2 half-moves
25 Rb8 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