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 Rb8 draw
3 Rc8 draw
4 Rd8 draw
5 Kf1 loss in 2 half-moves
6 Kf2 loss in 2 half-moves
7 Kg2 loss in 2 half-moves
8 Kh1 loss in 2 half-moves
9 Kh2 loss in 2 half-moves
10 Ra8 loss in 2 half-moves
11 Re8 loss in 2 half-moves
12 Rf8 loss in 2 half-moves
13 Rg2 loss in 2 half-moves
14 Rg3 loss in 2 half-moves
15 Rg5 loss in 2 half-moves
16 Rg6 loss in 2 half-moves
17 Rg7 loss in 2 half-moves
18 Rh8 loss in 2 half-moves