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 Kg6 loss in 2 half-moves
3 Kh5 loss in 2 half-moves
4 Kh7 loss in 2 half-moves
5 Ra7 loss in 2 half-moves
6 Rb7 loss in 2 half-moves
7 Rc7 loss in 2 half-moves
8 Rd7 loss in 2 half-moves
9 Re7 loss in 2 half-moves
10 Rf7 loss in 2 half-moves
11 Rg1 loss in 2 half-moves
12 Rg2 loss in 2 half-moves
13 Rg6 loss in 2 half-moves
14 Rg8 loss in 2 half-moves
15 Rh7 loss in 2 half-moves
16 Kg5 loss in 1 half-moves
17 Rg3 loss in 1 half-moves
18 Rg5 loss in 1 half-moves