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 Kf7 draw
3 Rb7 draw
4 Rc7 draw
5 Rd7 draw
6 Rg3 draw
7 Rg5 draw
8 Rg6 draw
9 Kf8 loss in 2 half-moves
10 Kh7 loss in 2 half-moves
11 Kh8 loss in 2 half-moves
12 Ra7 loss in 2 half-moves
13 Re7 loss in 2 half-moves
14 Rf7 loss in 2 half-moves
15 Rg1 loss in 2 half-moves
16 Rg2 loss in 2 half-moves
17 Rh7 loss in 2 half-moves