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

EGTB: win in 4 half-moves

# move score
1 Rf6 win in 3 half-moves
2 Kff6 draw
3 Kfg4 draw
4 Kgf6 draw
5 Kgg4 draw
6 Kgg6 draw
7 Kh4 draw
8 Kh5 draw
9 Kh6 draw
10 Ra8 draw
11 Rf7 draw
12 Rg8 draw
13 Ke4 loss in 2 half-moves
14 Ke5 loss in 2 half-moves
15 Ke6 loss in 2 half-moves
16 Kff4 loss in 2 half-moves
17 Kfg6 loss in 2 half-moves
18 Kgf4 loss in 2 half-moves
19 Rb8 loss in 2 half-moves
20 Rc8 loss in 2 half-moves
21 Rd8 loss in 2 half-moves
22 Re8 loss in 2 half-moves
23 Rh8 loss in 2 half-moves