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

EGTB: win in 4 half-moves

# move score
1 Ba4 win in 3 half-moves
2 Bh5 draw
3 Bd7 loss in 12 half-moves
4 Bb5 loss in 2 half-moves
5 Bc6 loss in 2 half-moves
6 Bf7 loss in 2 half-moves
7 Bg6 loss in 2 half-moves