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 Bb3 draw
4 Bc4 draw
5 Bc6 draw
6 Bg2 draw
7 Bg8 draw
8 Bh1 draw
9 Be4 loss in 8 half-moves
10 Ba2 loss in 6 half-moves
11 Bb7 loss in 2 half-moves
12 Be6 loss in 2 half-moves
13 Bf3 loss in 2 half-moves
14 Bf7 loss in 1 half-moves