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 Kgg3 draw
6 Kgg5 draw
7 Kgh3 draw
8 Kgh5 draw
9 Khg3 draw
10 Khg5 draw
11 Khh3 draw
12 Khh5 draw
13 Ra1 draw
14 Ra5 draw
15 Ra6 draw
16 Ra7 draw
17 Re8 draw
18 Rg8 draw
19 Rh8 draw
20 Ra2 loss in 2 half-moves
21 Ra3 loss in 2 half-moves
22 Ra4 loss in 2 half-moves
23 Rb8 loss in 2 half-moves
24 Rc8 loss in 2 half-moves
25 Rd8 loss in 2 half-moves