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

EGTB: win in 2 half-moves

# move score
1 Nb5 win in 1 half-moves
2 Kb7 loss in 18 half-moves
3 Kb8 loss in 18 half-moves
4 Kc7 loss in 18 half-moves
5 Kd7 loss in 16 half-moves
6 Kd8 loss in 16 half-moves
7 Nc6 loss in 2 half-moves