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

EGTB: win in 4 half-moves

# move score
1 Kb2 win in 3 half-moves
2 Ka2 draw
3 Na5 loss in 6 half-moves
4 Nd6 loss in 6 half-moves
5 Nd8 loss in 4 half-moves
6 Ka1 loss in 2 half-moves
7 Kc1 loss in 2 half-moves
8 Kc2 loss in 2 half-moves
9 Nc5 loss in 1 half-moves