White to play and win
White cannot promote one of their pawns directly because their king and knight cannot support them. However, white can use them to force the king to e6 and fork the black king and bishop even though there are hardly any pawns on the board.
1.e6! Kxf6
Trying to stop the pawn with the bishop will also lose the piece: 1...Bc4 2.e7 Bb5 3.Nc3 Bd7 4.Ne4+ Kf5 5.Nd6+ Kxf6 6.e8=Q Bxe8 7.Nxe8+ +-
2.Ne3!
Forcing the bishop nearer to the black king in order to set up a fork.
2...Bh3
Any other bishop move will also lead to a fork of the bishop and the king on e6
3.Nd5+ Kxe6
Otherwise white would simply promote the pawn.
4.Nf4+ Ke5 5.Nxh3
And this ending is a simple win for white