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

EGTB: win in 4 half-moves

# move score
1 Kg6 win in 3 half-moves
2 Rc6 draw
3 Rd6 draw
4 Re6 draw
5 Kf2 loss in 2 half-moves
6 Kf3 loss in 2 half-moves
7 Kf4 loss in 2 half-moves
8 Kg2 loss in 2 half-moves
9 Kg5 loss in 2 half-moves
10 Kgg4 loss in 2 half-moves
11 Kgh4 loss in 2 half-moves
12 Kh2 loss in 2 half-moves
13 Kh3 loss in 2 half-moves
14 Khg4 loss in 2 half-moves
15 Khh4 loss in 2 half-moves
16 Ra6 loss in 2 half-moves
17 Rb6 loss in 2 half-moves
18 Rf6 loss in 2 half-moves
19 Rg6 loss in 2 half-moves
20 Rh7 loss in 2 half-moves
21 Rh8 loss in 2 half-moves