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 Kg2 draw
3 Kh2 draw
4 Ra1 draw
5 Rb1 draw
6 Rc1 draw
7 Rd1 draw
8 Re1 draw
9 Rg2 draw
10 Rg3 draw
11 Rg4 draw
12 Rg5 draw
13 Rf1 loss in 2 half-moves
14 Rg6 loss in 2 half-moves
15 Rg7 loss in 1 half-moves