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

EGTB: win in 6 half-moves

# move score
1 Kb7 win in 5 half-moves
2 Kb8 draw
3 Kc7 draw
4 Kd7 draw
5 Kd8 draw
6 Nf5 draw
7 Ng4 draw
8 Ng8 draw
9 Nf7 loss in 2 half-moves