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

EGTB: win in 4 half-moves

# move score
1 Nb5 win in 3 half-moves
2 Nc8 loss in 16 half-moves
3 Kc7 loss in 12 half-moves
4 Kd5 loss in 12 half-moves
5 Kd7 loss in 12 half-moves
6 Ke6 loss in 8 half-moves
7 Ke7 loss in 8 half-moves
8 Kc6 loss in 4 half-moves
9 Kc5 loss in 2 half-moves
10 Ke5 loss in 2 half-moves
11 Nc6 loss in 2 half-moves