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

EGTB: draw

# move score
1 a8=K draw
2 a8=R draw
3 Na5 draw
4 Nd8 draw
5 a8=Q loss in 6 half-moves
6 Nc5 loss in 2 half-moves
7 Nd6 loss in 2 half-moves
8 a8=B loss in 1 half-moves
9 a8=N loss in 1 half-moves