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

EGTB: win in 4 half-moves

# move score
1 Rf8 win in 3 half-moves
2 Kf3 draw
3 Kf4 draw
4 Kf5 draw
5 Kg3 draw
6 Kg6 draw
7 Kgg5 draw
8 Kgh4 draw
9 Kh3 draw
10 Kh6 draw
11 Khg5 draw
12 Khh4 draw
13 Rc2 draw
14 Rd8 draw
15 Re8 draw
16 Rg8 draw
17 Rh8 draw
18 Ra8 loss in 2 half-moves
19 Rb8 loss in 2 half-moves
20 Rc1 loss in 2 half-moves
21 Rc3 loss in 2 half-moves
22 Rc4 loss in 2 half-moves
23 Rc5 loss in 2 half-moves
24 Rc6 loss in 2 half-moves
25 Rc7 loss in 2 half-moves