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

EGTB: win in 4 half-moves

# move score
1 Kg7 win in 3 half-moves
2 Rg5 win in 3 half-moves
3 Kg8 win in 7 half-moves
4 Kg5 win in 9 half-moves
5 Rh8 win in 9 half-moves
6 Kf7 draw
7 Rh1 draw
8 Ke4 loss in 2 half-moves
9 Ke5 loss in 2 half-moves
10 Ke6 loss in 2 half-moves
11 Ke7 loss in 2 half-moves
12 Ke8 loss in 2 half-moves
13 Kf4 loss in 2 half-moves
14 Kf6 loss in 2 half-moves
15 Kg4 loss in 2 half-moves
16 Kg6 loss in 2 half-moves
17 Rh2 loss in 2 half-moves
18 Rh3 loss in 2 half-moves
19 Rh4 loss in 2 half-moves
20 Rh6 loss in 2 half-moves
21 Rh7 loss in 2 half-moves