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 Rd8 draw
3 Rg5 draw
4 Kf1 loss in 2 half-moves
5 Kf2 loss in 2 half-moves
6 Kf3 loss in 2 half-moves
7 Kg1 loss in 2 half-moves
8 Kg3 loss in 2 half-moves
9 Kh1 loss in 2 half-moves
10 Kh2 loss in 2 half-moves
11 Kh3 loss in 2 half-moves
12 Ra8 loss in 2 half-moves
13 Rb8 loss in 2 half-moves
14 Rc8 loss in 2 half-moves
15 Re8 loss in 2 half-moves
16 Rf8 loss in 2 half-moves
17 Rg3 loss in 2 half-moves
18 Rg7 loss in 2 half-moves
19 Rh8 loss in 2 half-moves
20 Rg6 loss in 1 half-moves