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

EGTB: win in 4 half-moves

# move score
1 Rg1 win in 3 half-moves
2 Kg1 win in 7 half-moves
3 Kg2 win in 7 half-moves
4 Kg3 win in 7 half-moves
5 Kh1 win in 7 half-moves
6 Kh3 win in 7 half-moves
7 Rg8 win in 7 half-moves
8 Rh6 win in 7 half-moves
9 Ke7 draw
10 Kf5 draw
11 Kf7 draw
12 Kg5 draw
13 Kg7 draw
14 Rg2 draw
15 Rg7 draw
16 Ke5 loss in 2 half-moves
17 Ke6 loss in 2 half-moves
18 Rg3 loss in 2 half-moves
19 Rg4 loss in 2 half-moves
20 Rg5 loss in 2 half-moves