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

EGTB: win in 4 half-moves

# move score
1 Kg5 win in 3 half-moves
2 Kg6 win in 3 half-moves
3 Rf6 win in 3 half-moves
4 Rg6 win in 3 half-moves
5 Kd7 win in 7 half-moves
6 Kf7 win in 7 half-moves
7 Kf8 win in 7 half-moves
8 Kg4 win in 7 half-moves
9 Kd8 win in 11 half-moves
10 Rh7 win in 17 half-moves
11 Ke8 win in 25 half-moves
12 Kd6 draw
13 Ke6 draw
14 Kf6 draw
15 Kh4 draw
16 Ra6 draw
17 Re6 draw
18 Rh8 draw
19 Rb6 loss in 2 half-moves
20 Rc6 loss in 2 half-moves
21 Rd6 loss in 2 half-moves