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 Kd1 loss in 2 half-moves
3 Kd2 loss in 2 half-moves
4 Kd3 loss in 2 half-moves
5 Ke1 loss in 2 half-moves
6 Ke3 loss in 2 half-moves
7 Kef1 loss in 2 half-moves
8 Kef2 loss in 2 half-moves
9 Kf3 loss in 2 half-moves
10 Kgf1 loss in 2 half-moves
11 Kgf2 loss in 2 half-moves
12 Kh1 loss in 2 half-moves
13 Kh2 loss in 2 half-moves
14 Rf2 loss in 2 half-moves
15 Rg3 loss in 2 half-moves
16 Rg5 loss in 2 half-moves
17 Rg6 loss in 2 half-moves
18 Rg7 loss in 2 half-moves
19 Rg8 loss in 2 half-moves
20 Rh2 loss in 2 half-moves