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

EGTB: win in 2 half-moves

# move score
1 Rd8 win in 1 half-moves
2 Kb6 draw
3 Kb7 draw
4 Kb8 draw
5 Rb8 draw
6 Rc8 draw
7 Re8 draw
8 Rf8 draw
9 Ka6 loss in 4 half-moves
10 Rg8 loss in 2 half-moves
11 Rh8 loss in 2 half-moves