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

EGTB: win in 4 half-moves

# move score
1 Bb6 win in 3 half-moves
2 Bg5 win in 3 half-moves
3 Ba5 loss in 2 half-moves
4 Bc7 loss in 2 half-moves
5 Be7 loss in 2 half-moves
6 Bf6 loss in 2 half-moves
7 Bh4 loss in 2 half-moves