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

EGTB: win in 4 half-moves

# move score
1 Ra8 win in 3 half-moves
2 Nc6 draw
3 Nc8 draw
4 Rf8 draw
5 Rh8 draw
6 Nb5 loss in 2 half-moves
7 Rb8 loss in 2 half-moves
8 Rc8 loss in 2 half-moves
9 Re8 loss in 2 half-moves
10 Rg8 loss in 2 half-moves