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 Kb6 draw
3 Kc6 draw
4 Kd6 draw
5 Kd7 draw
6 Nb7 draw
7 Nc4 draw
8 Nc6 draw
9 Kb7 loss in 32 half-moves
10 Kb8 loss in 22 half-moves
11 Kc8 loss in 22 half-moves
12 Kd8 loss in 1 half-moves