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

EGTB: win in 4 half-moves

# move score
1 b5 win in 3 half-moves
2 Bb5 draw
3 Bd3 draw
4 Bd5 draw
5 Bf7 draw
6 Bg8 draw
7 Ba2 loss in 6 half-moves
8 Ba6 loss in 2 half-moves
9 Bb3 loss in 2 half-moves
10 Be2 loss in 2 half-moves
11 Be6 loss in 2 half-moves
12 Bf1 loss in 2 half-moves