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 Rc8 draw
3 K1g1 loss in 2 half-moves
4 K1g2 loss in 2 half-moves
5 K2g1 loss in 2 half-moves
6 K2g2 loss in 2 half-moves
7 Kg3 loss in 2 half-moves
8 Kh3 loss in 2 half-moves
9 Ra8 loss in 2 half-moves
10 Rb8 loss in 2 half-moves
11 Rd8 loss in 2 half-moves
12 Re8 loss in 2 half-moves
13 Rf8 loss in 2 half-moves
14 Rg1 loss in 2 half-moves
15 Rg2 loss in 2 half-moves
16 Rg3 loss in 2 half-moves
17 Rg5 loss in 2 half-moves
18 Rg6 loss in 2 half-moves
19 Rg7 loss in 2 half-moves
20 Rh8 loss in 2 half-moves