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 Nb4 draw
3 Nc1 draw
4 Rb8 draw
5 Rc8 draw
6 Rf8 draw
7 Nc3 loss in 4 half-moves
8 Re8 loss in 2 half-moves
9 Rg8 loss in 2 half-moves
10 Rh8 loss in 2 half-moves