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

EGTB: win in 1 half-moves

# move score
1 axb8=B win in 7 half-moves
2 axb8=K loss in 2 half-moves
3 axb8=N loss in 2 half-moves
4 axb8=Q loss in 2 half-moves
5 axb8=R loss in 2 half-moves