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 Kc6 draw
3 Kc7 draw
4 Kc8 draw
5 Kd8 draw
6 Nb5 draw
7 Nc4 draw
8 Nc8 draw
9 Ne8 draw
10 Nf5 draw
11 Ke6 loss in 2 half-moves
12 Ke7 loss in 2 half-moves
13 Ke8 loss in 2 half-moves
14 Ne4 loss in 2 half-moves
15 Nf7 loss in 2 half-moves