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

EGTB: draw

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