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

EGTB: win in 4 half-moves

# move score
1 Rg8 win in 3 half-moves
2 Kg3 draw
3 Kg4 draw
4 Kg5 draw
5 Kg7 draw
6 Kg8 draw
7 Kh3 draw
8 Kh5 draw
9 Kh7 draw
10 Ra8 draw
11 Re8 draw
12 Rf2 draw
13 Rb8 loss in 2 half-moves
14 Rc8 loss in 2 half-moves
15 Rd8 loss in 2 half-moves
16 Rf1 loss in 2 half-moves
17 Rf3 loss in 2 half-moves
18 Rf4 loss in 2 half-moves
19 Rf5 loss in 2 half-moves
20 Rf6 loss in 2 half-moves
21 Rf7 loss in 2 half-moves