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

EGTB: win in 2 half-moves

# move score
1 Rg8 win in 1 half-moves
2 Re7 draw
3 Rg1 loss in 6 half-moves
4 Rg2 loss in 6 half-moves
5 Rg4 loss in 6 half-moves
6 Kg3 loss in 2 half-moves
7 Kg4 loss in 2 half-moves
8 Kg5 loss in 2 half-moves
9 Kh3 loss in 2 half-moves
10 Kh5 loss in 2 half-moves
11 Rb7 loss in 2 half-moves
12 Rf7 loss in 2 half-moves
13 Rg3 loss in 2 half-moves
14 Rg5 loss in 2 half-moves
15 Rg6 loss in 2 half-moves
16 Rh7 loss in 2 half-moves
17 Ra7 loss in 1 half-moves
18 Rc7 loss in 1 half-moves
19 Rd7 loss in 1 half-moves