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 draw
3 Nb2 draw
4 Nc3 draw
5 Ne3 draw
6 Nf2 loss in 8 half-moves
7 a8=Q loss in 4 half-moves
8 a8=N loss in 1 half-moves
9 a8=R loss in 1 half-moves