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 Kg6 draw
3 Kgg4 draw
4 Khg4 draw
5 Khh5 draw
6 Rb8 draw
7 Rg7 draw
8 Rh8 draw
9 Kf4 loss in 2 half-moves
10 Kf5 loss in 2 half-moves
11 Kf6 loss in 2 half-moves
12 Kg3 loss in 2 half-moves
13 Kgh5 loss in 2 half-moves
14 Kh3 loss in 2 half-moves
15 Kh6 loss in 2 half-moves
16 Ra8 loss in 2 half-moves
17 Rc8 loss in 2 half-moves
18 Rd8 loss in 2 half-moves
19 Re8 loss in 2 half-moves
20 Rf8 loss in 2 half-moves