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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Kg6 draw
3 Kh6 draw
4 Kh7 draw
5 Rf8 draw
6 Rg8 draw
7 Rh1 draw
8 Rh2 draw
9 Rh3 draw
10 Kg8 loss in 6 half-moves
11 Kf8 loss in 4 half-moves
12 Rh7 loss in 4 half-moves
13 Kf6 loss in 2 half-moves
14 Kf7 loss in 2 half-moves
15 Ra8 loss in 2 half-moves
16 Rc8 loss in 2 half-moves
17 Rd8 loss in 2 half-moves
18 Re8 loss in 2 half-moves
19 Rh4 loss in 2 half-moves
20 Rh5 loss in 2 half-moves
21 Rh6 loss in 2 half-moves