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

EGTB: win in 4 half-moves

# move score
1 Rg8 win in 3 half-moves
2 Kg5 win in 5 half-moves
3 Kf5 win in 9 half-moves
4 Rh8 win in 11 half-moves
5 Ke3 draw
6 Kf3 draw
7 Kf6 draw
8 Kg3 draw
9 Kg4 draw
10 Kg6 draw
11 Kg7 draw
12 Kg8 draw
13 Ra8 draw
14 Ke4 loss in 2 half-moves
15 Ke5 loss in 2 half-moves
16 Ke6 loss in 2 half-moves
17 Ke7 loss in 2 half-moves
18 Ke8 loss in 2 half-moves
19 Rb8 loss in 2 half-moves
20 Rc8 loss in 2 half-moves
21 Rd8 loss in 2 half-moves
22 Re8 loss in 2 half-moves