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 draw
3 Rb8 draw
4 Rc8 draw
5 Rd8 draw
6 Rg1 draw
7 Rg2 draw
8 Rg3 draw
9 Rg6 draw
10 Rh8 draw
11 Ra8 loss in 10 half-moves
12 Rf8 loss in 8 half-moves
13 Kg7 loss in 6 half-moves
14 Ke6 loss in 2 half-moves
15 Ke7 loss in 2 half-moves
16 Ke8 loss in 2 half-moves
17 Kf6 loss in 2 half-moves
18 Kf8 loss in 2 half-moves
19 Re8 loss in 2 half-moves
20 Rg5 loss in 2 half-moves
21 Rg7 loss in 2 half-moves