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

EGTB: win in 2 half-moves

# move score
1 Rg3 win in 1 half-moves
2 Rg4 win in 1 half-moves
3 Rg8 draw
4 Kd1 loss in 2 half-moves
5 Kd2 loss in 2 half-moves
6 Kd3 loss in 2 half-moves
7 Ke1 loss in 2 half-moves
8 Ke3 loss in 2 half-moves
9 Kf1 loss in 2 half-moves
10 Kf2 loss in 2 half-moves
11 Kf3 loss in 2 half-moves
12 Rf2 loss in 2 half-moves
13 Rg1 loss in 2 half-moves
14 Rg6 loss in 2 half-moves
15 Rg7 loss in 2 half-moves
16 Rh2 loss in 2 half-moves
17 Rg5 loss in 1 half-moves