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

EGTB: win in 4 half-moves

# move score
1 Bd1 win in 3 half-moves
2 Ba2 draw
3 Ba4 draw
4 Bc4 draw
5 Bd5 draw
6 Bg8 draw
7 Bc2 loss in 2 half-moves
8 Be6 loss in 2 half-moves
9 Bf7 loss in 2 half-moves