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 Rg1 draw
3 Rg2 draw
4 Rg3 draw
5 Rg6 draw
6 Rg7 draw
7 Ke4 loss in 2 half-moves
8 Ke5 loss in 2 half-moves
9 Kf5 loss in 2 half-moves
10 Kfg5 loss in 2 half-moves
11 Kg6 loss in 2 half-moves
12 Kh4 loss in 2 half-moves
13 Kh6 loss in 2 half-moves
14 Khg5 loss in 2 half-moves
15 Rg5 loss in 2 half-moves
16 Rh4 loss in 2 half-moves
17 Ke3 loss in 1 half-moves
18 Kf3 loss in 1 half-moves
19 Kg3 loss in 1 half-moves