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 Ba8 draw
3 Be4 draw
4 Be8 draw
5 Bg2 draw
6 Bh1 draw
7 Ba4 loss in 2 half-moves
8 Bb5 loss in 2 half-moves
9 Bb7 loss in 2 half-moves
10 Bd5 loss in 2 half-moves
11 Bd7 loss in 2 half-moves
12 Bf3 loss in 2 half-moves