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

EGTB: win in 1 half-moves

# move score
1 a8=B win in 5 half-moves
2 a8=K win in 13 half-moves
3 a8=N draw
4 Nf4 loss in 7 half-moves
5 a8=Q loss in 2 half-moves
6 a8=R loss in 2 half-moves
7 Nf6 loss in 2 half-moves
8 Ng3 loss in 2 half-moves
9 Ng7 loss in 2 half-moves