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 Na2 draw
4 Nd3 draw
5 Kb7 loss in 14 half-moves
6 Kc6 loss in 14 half-moves
7 Kb8 loss in 12 half-moves
8 Kc8 loss in 12 half-moves
9 Kd7 loss in 12 half-moves
10 Kd8 loss in 12 half-moves
11 Kd6 loss in 2 half-moves
12 Ne2 loss in 2 half-moves