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

EGTB: win in 10 half-moves

# move score
1 Kf8 win in 9 half-moves
2 Rh8 win in 13 half-moves
3 Kd7 loss in 2 half-moves
4 Kd8 loss in 2 half-moves
5 Ke7 loss in 2 half-moves
6 Kef7 loss in 2 half-moves
7 Kf5 loss in 2 half-moves
8 Kf6 loss in 2 half-moves
9 Kg5 loss in 2 half-moves
10 Kg7 loss in 2 half-moves
11 Kgf7 loss in 2 half-moves
12 Kh5 loss in 2 half-moves
13 Kh7 loss in 2 half-moves
14 Rh1 loss in 2 half-moves
15 Rh2 loss in 2 half-moves
16 Rh3 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