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 Kg1 draw
6 Kg3 draw
7 Kg4 draw
8 Kg5 draw
9 Kg6 draw
10 Kh1 draw
11 Kh2 draw
12 Kh3 draw
13 Kh4 draw
14 Kh6 draw
15 Ra8 draw
16 Re8 draw
17 Rf8 draw
18 Rg4 draw
19 Rh8 draw
20 Rb8 loss in 2 half-moves
21 Rc8 loss in 2 half-moves
22 Rd8 loss in 2 half-moves
23 Rg5 loss in 2 half-moves
24 Rg6 loss in 2 half-moves
25 Rg7 loss in 2 half-moves