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

EGTB: win in 4 half-moves

# move score
1 Be5 win in 3 half-moves
2 Bc7 draw
3 Bd6 draw
4 Bf4 draw
5 Bg3 draw
6 Ka2 draw
7 Kb1 draw
8 Kb2 draw
9 Bb8 loss in 2 half-moves
10 Bg1 loss in 2 half-moves