A Queen fork this time, and if Bf3 the Rook drops. White's reply is forced.

Another white pawn falls. White's kingside pawn cover is all gone and the king is exposed but black is running out of steam. This capture allows one of his three attacking pieces to be exchanged off reducing the risk of disaster for white.

White has had a bit of a kicking, but can now begin a counter attack, placing his pieces more aggressively, with tempo, and driving the black pieces away.

I'm not sure about this move. It seemed to me that it helps white by forcing the king to free f1 for the rook from where it can attack black's Queen.

This interrupts the protection of the the knight on h5 as well as preventing the other black knight coming out on d7. Moves like Ng5 or Nd6 are in the air.

A mistake as the knight is not protected. The "weakness" on f6 is more important.

If the rook is taken then Nf6+ followed by Qh7 is mate.

Pretty much the only move.

Threatens the rook and pins the f pawn to the black Queen. White's pieces swarm round the Black King whilst his knight and rook are stuck in the corner.

Forking Queen and f pawn. Black still has four pawns for the bishop but their position is terrible.