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

EGTB: win in 4 half-moves

# move score
1 Rg6 win in 3 half-moves
2 Ke1 draw
3 Ke2 draw
4 Ke6 draw
5 Kf2 draw
6 Kg1 draw
7 Kg2 draw
8 Kg6 draw
9 Rh1 draw
10 Rh8 draw
11 Ke5 loss in 2 half-moves
12 Ke7 loss in 2 half-moves
13 Kf5 loss in 2 half-moves
14 Kf7 loss in 2 half-moves
15 Kg5 loss in 2 half-moves
16 Kg7 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 Rh5 loss in 2 half-moves
21 Rh7 loss in 2 half-moves