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

EGTB: win in 4 half-moves

# move score
1 Kf6 win in 3 half-moves
2 Kh1 win in 5 half-moves
3 Kh3 win in 5 half-moves
4 Rh3 win in 7 half-moves
5 Kd6 draw
6 Kg1 draw
7 Kg2 draw
8 Kg3 draw
9 Rf6 draw
10 Rg6 draw
11 Rh8 draw
12 Kd5 loss in 2 half-moves
13 Kd7 loss in 2 half-moves
14 Ke5 loss in 2 half-moves
15 Ke7 loss in 2 half-moves
16 Kf5 loss in 2 half-moves
17 Kf7 loss in 2 half-moves
18 Rh4 loss in 2 half-moves
19 Rh5 loss in 2 half-moves
20 Rh7 loss in 2 half-moves