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

EGTB: win in 4 half-moves

# move score
1 Rg3 win in 3 half-moves
2 Kf1 draw
3 Kf2 draw
4 Kf3 draw
5 Kg3 draw
6 Kgg1 draw
7 Kgh2 draw
8 Kh3 draw
9 Khg1 draw
10 Khh2 draw
11 Rc8 draw
12 Rg4 draw
13 Rh8 draw
14 Ra8 loss in 2 half-moves
15 Rb8 loss in 2 half-moves
16 Rd8 loss in 2 half-moves
17 Re8 loss in 2 half-moves
18 Rf8 loss in 2 half-moves
19 Rg5 loss in 2 half-moves
20 Rg6 loss in 2 half-moves
21 Rg7 loss in 2 half-moves