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

EGTB: draw

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