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 Kg6 draw
3 Kgg7 draw
4 Kgh8 draw
5 Kh6 draw
6 Khg7 draw
7 Khh8 draw
8 Ra1 draw
9 Rb8 draw
10 Kf7 loss in 2 half-moves
11 Kf8 loss in 2 half-moves
12 Ra2 loss in 2 half-moves
13 Ra3 loss in 2 half-moves
14 Ra4 loss in 2 half-moves
15 Ra5 loss in 2 half-moves
16 Ra6 loss in 2 half-moves
17 Ra7 loss in 2 half-moves
18 Rc8 loss in 2 half-moves
19 Rd8 loss in 2 half-moves
20 Re8 loss in 2 half-moves