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

EGTB: draw

# move score
1 Bb4 draw
2 Bd6 draw
3 Be7 draw
4 Bf8 draw
5 Bb2 loss in 2 half-moves
6 Bc1 loss in 2 half-moves
7 Bc5 loss in 2 half-moves