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 Kf6 draw
3 Kf8 draw
4 Kg6 draw
5 Nb1 draw
6 Kg7 loss in 4 half-moves
7 Kg8 loss in 4 half-moves
8 Nc2 loss in 2 half-moves
9 Nc4 loss in 2 half-moves
10 Ke6 loss in 1 half-moves
11 Ke7 loss in 1 half-moves
12 Ke8 loss in 1 half-moves