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 Kf3 win in 5 half-moves
4 Rf8 win in 5 half-moves
5 Kf4 win in 7 half-moves
6 Kh5 win in 7 half-moves
7 Re8 win in 7 half-moves
8 Kf5 win in 9 half-moves
9 Ke3 draw
10 Ke5 draw
11 Kg7 draw
12 Kh7 draw
13 Rc8 draw
14 Rd8 draw
15 Rg8 draw
16 Rh7 draw
17 Kd3 loss in 2 half-moves
18 Kd4 loss in 2 half-moves
19 Kd5 loss in 2 half-moves
20 Ra8 loss in 2 half-moves
21 Rb8 loss in 2 half-moves