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

EGTB: win in 4 half-moves

# move score
1 Bd8 win in 3 half-moves
2 Ba5 draw
3 Ba7 draw
4 Be3 draw
5 Bf2 draw
6 Bg1 draw
7 Bc5 loss in 2 half-moves
8 Bc7 loss in 2 half-moves
9 Bd4 loss in 2 half-moves