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 Ka5 loss in 2 half-moves
3 Ka7 loss in 2 half-moves
4 Ra7 loss in 2 half-moves
5 Rb8 loss in 2 half-moves
6 Rc8 loss in 2 half-moves
7 Rd8 loss in 2 half-moves
8 Re8 loss in 2 half-moves
9 Rf8 loss in 2 half-moves
10 Rh8 loss in 2 half-moves
11 Kb5 loss in 1 half-moves
12 Kb6 loss in 1 half-moves
13 Kb7 loss in 1 half-moves