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

EGTB: win in 4 half-moves

# move score
1 Kff3 win in 3 half-moves
2 Rg5 win in 3 half-moves
3 Ke4 win in 7 half-moves
4 Kf2 win in 7 half-moves
5 Kg2 win in 7 half-moves
6 Kgf3 win in 7 half-moves
7 Kh2 win in 7 half-moves
8 Kh3 win in 7 half-moves
9 Ke3 draw
10 Kg5 draw
11 Kh4 draw
12 Rh4 draw
13 Ke5 loss in 2 half-moves
14 Kf5 loss in 2 half-moves
15 Rg6 loss in 2 half-moves
16 Rg7 loss in 2 half-moves
17 Rg8 loss in 2 half-moves