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 Rb7 draw
3 Rd7 draw
4 Re7 draw
5 Rf7 draw
6 Rg3 draw
7 Rg5 draw
8 Rg6 draw
9 Kg1 loss in 2 half-moves
10 Kg2 loss in 2 half-moves
11 Kh2 loss in 2 half-moves
12 Ra7 loss in 2 half-moves
13 Rc7 loss in 2 half-moves
14 Rg1 loss in 2 half-moves
15 Rg2 loss in 2 half-moves
16 Rg8 loss in 2 half-moves
17 Rh7 loss in 2 half-moves