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

EGTB: win in 6 half-moves

# move score
1 f6 win in 5 half-moves
2 Ra3 draw
3 Rb3 draw
4 Rc3 draw
5 Rd3 draw
6 Re3 draw
7 Rf4 draw
8 Rf1 loss in 2 half-moves
9 Rf2 loss in 2 half-moves
10 Rg3 loss in 2 half-moves
11 Rh3 loss in 2 half-moves