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

EGTB: win in 4 half-moves

# move score
1 Ba3 win in 3 half-moves
2 Bd4 draw
3 Nb6 draw
4 Nc7 draw
5 Ba7 loss in 6 half-moves
6 Bb6 loss in 4 half-moves
7 Bd6 loss in 4 half-moves
8 Bf8 loss in 4 half-moves
9 Bb4 loss in 2 half-moves
10 Be3 loss in 2 half-moves
11 Be7 loss in 2 half-moves
12 Bf2 loss in 1 half-moves
13 Bg1 loss in 1 half-moves