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 Ra1 draw
3 Rb1 draw
4 Rc1 draw
5 Rd1 draw
6 Re1 draw
7 Rf1 draw
8 Rg2 draw
9 Rg3 draw
10 Rg7 draw
11 Kg5 loss in 2 half-moves
12 Kg6 loss in 2 half-moves
13 Kg8 loss in 2 half-moves
14 Kh5 loss in 2 half-moves
15 Rg5 loss in 2 half-moves
16 Rg6 loss in 2 half-moves
17 Rg8 loss in 2 half-moves
18 Rh1 loss in 2 half-moves
19 K6g7 loss in 1 half-moves
20 K6h7 loss in 1 half-moves
21 K8g7 loss in 1 half-moves
22 K8h7 loss in 1 half-moves