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 1 half-moves
2 a8=Q win in 1 half-moves
3 a8=R win in 1 half-moves
4 a8=K draw
5 Nf3 draw
6 Nf1 loss in 2 half-moves
7 Ng4 loss in 2 half-moves
8 a8=N loss in 1 half-moves