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 Kg8 win in 11 half-moves
3 Ke5 loss in 2 half-moves
4 Ke6 loss in 2 half-moves
5 Ke7 loss in 2 half-moves
6 Kf5 loss in 2 half-moves
7 Kf7 loss in 2 half-moves
8 Kfg6 loss in 2 half-moves
9 Kfg7 loss in 2 half-moves
10 Kg5 loss in 2 half-moves
11 Kh6 loss in 2 half-moves
12 Khg6 loss in 2 half-moves
13 Khg7 loss in 2 half-moves
14 Ra8 loss in 2 half-moves
15 Rc8 loss in 2 half-moves
16 Rd8 loss in 2 half-moves
17 Re8 loss in 2 half-moves
18 Rf8 loss in 2 half-moves
19 Rg8 loss in 2 half-moves