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

EGTB: win in 2 half-moves

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