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

EGTB: win in 4 half-moves

# move score
1 f6 win in 3 half-moves
2 Rf6 draw
3 Rf8 draw
4 Rh7 draw
5 Ra7 loss in 2 half-moves
6 Rb7 loss in 2 half-moves
7 Rc7 loss in 2 half-moves
8 Rd7 loss in 2 half-moves
9 Re7 loss in 2 half-moves
10 Rg7 loss in 2 half-moves