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

EGTB: win in 4 half-moves

# move score
1 Kh4 win in 3 half-moves
2 Kg4 win in 7 half-moves
3 Kf3 win in 9 half-moves
4 Kf5 win in 9 half-moves
5 Kf6 win in 9 half-moves
6 Rh3 win in 11 half-moves
7 Kgf4 draw
8 Rg4 draw
9 Kg6 loss in 6 half-moves
10 Kh5 loss in 6 half-moves
11 Kh6 loss in 6 half-moves
12 Rf3 loss in 4 half-moves
13 Kd2 loss in 2 half-moves
14 Kd3 loss in 2 half-moves
15 Kd4 loss in 2 half-moves
16 Ke2 loss in 2 half-moves
17 Ke4 loss in 2 half-moves
18 Kef4 loss in 2 half-moves
19 Kf2 loss in 2 half-moves
20 Rg1 loss in 2 half-moves
21 Rg2 loss in 2 half-moves