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 K7f8 draw
3 K7h7 draw
4 K7h8 draw
5 K8f8 draw
6 K8h7 draw
7 K8h8 draw
8 Kg6 draw
9 Kh6 draw
10 Ra2 draw
11 Ra7 draw
12 Rb8 draw
13 K7f7 loss in 2 half-moves
14 K8f7 loss in 2 half-moves
15 Kf6 loss in 2 half-moves
16 Ra1 loss in 2 half-moves
17 Ra3 loss in 2 half-moves
18 Ra4 loss in 2 half-moves
19 Ra5 loss in 2 half-moves
20 Ra6 loss in 2 half-moves
21 Rc8 loss in 2 half-moves
22 Rd8 loss in 2 half-moves
23 Re8 loss in 2 half-moves