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