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

EGTB: win in 2 half-moves

# move score
1 Bc7 win in 1 half-moves
2 Bd2 win in 1 half-moves
3 Be1 win in 1 half-moves
4 Bb6 win in 3 half-moves
5 Bb4 loss in 2 half-moves
6 Bc3 loss in 2 half-moves
7 Bd8 loss in 2 half-moves