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 Kd1 draw
3 Kd2 draw
4 Kf1 draw
5 Nb7 loss in 2 half-moves
6 Nc4 loss in 2 half-moves
7 Nc6 loss in 2 half-moves
8 Ke2 loss in 1 half-moves
9 Kf2 loss in 1 half-moves