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

EGTB: win in 4 half-moves

# move score
1 Rh6 win in 3 half-moves
2 Kf4 draw
3 Kf5 draw
4 Kgg5 draw
5 Kgh4 draw
6 Kh3 draw
7 Kh6 draw
8 Khh4 draw
9 Rb8 draw
10 Rg8 draw
11 Rh7 draw
12 Kf3 loss in 2 half-moves
13 Kg3 loss in 2 half-moves
14 Kg6 loss in 2 half-moves
15 Khg5 loss in 2 half-moves
16 Ra8 loss in 2 half-moves
17 Rc8 loss in 2 half-moves
18 Rd8 loss in 2 half-moves
19 Re8 loss in 2 half-moves
20 Rf8 loss in 2 half-moves