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

EGTB: win in 4 half-moves

# move score
1 Kh5 win in 3 half-moves
2 Rh1 draw
3 Rh2 draw
4 Rh3 draw
5 Ke6 loss in 2 half-moves
6 Ke7 loss in 2 half-moves
7 Ke8 loss in 2 half-moves
8 Kf5 loss in 2 half-moves
9 Kf8 loss in 2 half-moves
10 Kff6 loss in 2 half-moves
11 Kfg7 loss in 2 half-moves
12 Kg5 loss in 2 half-moves
13 Kg8 loss in 2 half-moves
14 Kgf6 loss in 2 half-moves
15 Kgg7 loss in 2 half-moves
16 Kh7 loss in 2 half-moves
17 Rh4 loss in 2 half-moves
18 Rh5 loss in 2 half-moves
19 Rh7 loss in 2 half-moves
20 Rh8 loss in 2 half-moves