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

EGTB: win in 4 half-moves

# move score
1 Nb5 win in 3 half-moves
2 Kf6 draw
3 Kf7 draw
4 Kg6 draw
5 Nb1 draw
6 Nc2 draw
7 Kf8 loss in 6 half-moves
8 Kg8 loss in 6 half-moves
9 Kh6 loss in 2 half-moves
10 Kh7 loss in 2 half-moves
11 Kh8 loss in 2 half-moves
12 Nc4 loss in 2 half-moves