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

EGTB: win in 2 half-moves

# move score
1 f5 win in 1 half-moves
2 Ra6 win in 1 half-moves
3 Rc7 loss in 4 half-moves
4 Rc8 loss in 4 half-moves
5 Rb6 loss in 2 half-moves
6 Rd6 loss in 2 half-moves
7 Re6 loss in 2 half-moves
8 c4 loss in 1 half-moves