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 Rb1 draw
3 Rc1 draw
4 Rd1 draw
5 Re1 draw
6 Rf1 draw
7 Rg2 draw
8 Rg3 draw
9 Kf5 loss in 2 half-moves
10 Kf6 loss in 2 half-moves
11 Kf7 loss in 2 half-moves
12 Kg5 loss in 2 half-moves
13 Kg7 loss in 2 half-moves
14 Kh5 loss in 2 half-moves
15 Kh6 loss in 2 half-moves
16 Kh7 loss in 2 half-moves
17 Ra1 loss in 2 half-moves
18 Rg5 loss in 2 half-moves
19 Rh1 loss in 2 half-moves