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

EGTB: win in 2 half-moves

# move score
1 Rg4 win in 1 half-moves
2 Rg5 win in 1 half-moves
3 Kg8 draw
4 Kh6 draw
5 Kh7 draw
6 Ra2 draw
7 Rb2 draw
8 Rf2 draw
9 Rg1 draw
10 Rg3 draw
11 Kh8 loss in 4 half-moves
12 Kf6 loss in 2 half-moves
13 Kf7 loss in 2 half-moves
14 Kf8 loss in 2 half-moves
15 Kg6 loss in 2 half-moves
16 Rc2 loss in 2 half-moves
17 Rd2 loss in 2 half-moves
18 Re2 loss in 2 half-moves
19 Rg6 loss in 2 half-moves
20 Rh2 loss in 2 half-moves