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

EGTB: win in 4 half-moves

# move score
1 Nb3 win in 3 half-moves
2 Ka6 draw
3 Ka7 draw
4 Kb5 draw
5 Kb7 draw
6 Kc6 draw
7 Kc7 draw
8 Nb7 draw
9 Kc5 loss in 2 half-moves
10 Nc4 loss in 2 half-moves
11 Nc6 loss in 2 half-moves