Click on the third or sixth rank to set the en passant target square.

EGTB: win in 2 half-moves

# move score
1 Rg1 win in 1 half-moves
2 Ra7 draw
3 Rb7 draw
4 Rc7 draw
5 Rd7 draw
6 Re7 draw
7 Rf7 draw
8 Rg3 draw
9 Rg4 draw
10 Rg5 draw
11 Kg8 loss in 2 half-moves
12 Kh7 loss in 2 half-moves
13 Rg2 loss in 2 half-moves
14 Rg6 loss in 2 half-moves
15 Rg8 loss in 2 half-moves
16 Rh7 loss in 2 half-moves