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

EGTB: win in 4 half-moves

# move score
1 Nb6 win in 3 half-moves
2 Kb5 draw
3 Kb6 draw
4 Kc5 draw
5 Kd5 draw
6 Kd6 draw
7 Nb2 draw
8 Nc3 draw
9 Nc5 draw
10 Kb7 loss in 2 half-moves
11 Kc7 loss in 2 half-moves
12 Kd7 loss in 2 half-moves