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

EGTB: win in 4 half-moves

# move score
1 Nb3 win in 3 half-moves
2 Nc4 win in 3 half-moves
3 Nb7 loss in 2 half-moves
4 Nc6 loss in 2 half-moves
5 d8=B loss in 1 half-moves
6 d8=K loss in 1 half-moves
7 d8=N loss in 1 half-moves
8 d8=Q loss in 1 half-moves
9 d8=R loss in 1 half-moves