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

EGTB: win in 4 half-moves

# move score
1 Nb7 win in 3 half-moves
2 Ke5 draw
3 Ke6 draw
4 Kf6 draw
5 Kg5 draw
6 Kg6 draw
7 Nb5 draw
8 Nc8 draw
9 Ne8 draw
10 Nf7 draw
11 Ke4 loss in 2 half-moves
12 Kf4 loss in 2 half-moves
13 Kg4 loss in 2 half-moves
14 Nc4 loss in 2 half-moves
15 Ne4 loss in 2 half-moves