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

EGTB: win in 4 half-moves

# move score
1 Nb6 win in 3 half-moves
2 Nc7 win in 3 half-moves
3 b8=B loss in 1 half-moves
4 b8=K loss in 1 half-moves
5 b8=N loss in 1 half-moves
6 b8=Q loss in 1 half-moves
7 b8=R loss in 1 half-moves