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

EGTB: win in 2 half-moves

# move score
1 Rg8 win in 1 half-moves
2 Kb3 loss in 2 half-moves
3 Kb4 loss in 2 half-moves
4 Kb5 loss in 2 half-moves
5 Ra6 loss in 2 half-moves
6 Ra7 loss in 2 half-moves
7 Rb8 loss in 2 half-moves
8 Rc8 loss in 2 half-moves
9 Rd8 loss in 2 half-moves
10 Re8 loss in 2 half-moves
11 Rf8 loss in 2 half-moves
12 Rh8 loss in 2 half-moves
13 Ka3 loss in 1 half-moves
14 Ka5 loss in 1 half-moves
15 Ra5 loss in 1 half-moves