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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Rg5 win in 1 half-moves
3 Kg7 win in 3 half-moves
4 Rg2 draw
5 Kh7 loss in 2 half-moves
6 Ra8 loss in 2 half-moves
7 Rc8 loss in 2 half-moves
8 Rd8 loss in 2 half-moves
9 Re8 loss in 2 half-moves
10 Rf8 loss in 2 half-moves
11 Rg1 loss in 2 half-moves
12 Rg3 loss in 2 half-moves
13 Rg6 loss in 2 half-moves
14 Rg7 loss in 2 half-moves
15 Rg4 loss in 1 half-moves