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

EGTB: win in 2 half-moves

# move score
1 Ra8 win in 1 half-moves
2 Kg8 win in 9 half-moves
3 Kf8 win in 25 half-moves
4 Rh7 draw
5 Kf6 loss in 2 half-moves
6 Kf7 loss in 2 half-moves
7 Kg4 loss in 2 half-moves
8 Kg5 loss in 2 half-moves
9 Kgg6 loss in 2 half-moves
10 Kgh6 loss in 2 half-moves
11 Kh4 loss in 2 half-moves
12 Kh7 loss in 2 half-moves
13 Khg6 loss in 2 half-moves
14 Khh6 loss in 2 half-moves
15 Rb8 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 Rf8 loss in 2 half-moves
20 Rg8 loss in 2 half-moves
21 Rh6 loss in 2 half-moves