1.Nc5!
Transfers to a winning pawn endgame, or clears the way for the d-pawn
1...Nb6
2.d6Kf6
3.d7Ke7
4.Ke5h5
Zugzwang - after 4.Nc4+ 5.Kd5 Na5 (preventing Kc6) 6.g4 g5 7.Ke5 the White king penetrates on one flank or the other
5.Kf4Nc4
6.Kg5Ne5
7.h4!
Because of the zugzwang, White wins another pawn, so - Black resigns
Illincic-Abramovic (1995)