It almost feels like this is the start of a long endgame... White is a pawn up, but Black has the move, and more territory

? Ke2 was better, Black can now use both Bishops to at least win back a pawn

This neat 3 move sequence equalises the game, materially speaking, and Black could even have a slight edge

? Fritz evaluates b2-b3 as the better move, gaining some tempo, then following up with c3-c4 to hold the pawns

Now (after the forced a1Nc2) Black can win back the pawn as well as create a strong threat with b6-b5, as Black's passed a-pawn would be more dangerous than White's

? This cancels the threat, and allows White to get the game closer to level, but Black still has an edge

Some counter-play is needed

This allows Nf3, but Black's passed pawn can push onwards

? Black could start tying up White's position with b4-b3, forcing the Knights to defend, and then look to slowly improve the position

(Incidentally, this move was my 25,000th on RHP)