However Black had multiple in-between moves to choose from, including b7-b5 or Rxf2

? f2-f3 is now available

? White may have saved the loss of exchange, but the pawn is lost

To stop Qe7 (Note if Re8 instead, Nxc7 wins an exchange)

Giving up the exchange, but looking for an x-ray attack at the loose f7 rook

But surprisingly Black can gain enough compensation for the Queen sac, and even Fritz evaluates this game at 0.08 (very even)

Again stopping Qe7

Grabs a pawn, but this Knight is temporarily out of the game now

This aids the Knight back out, as well as hitting Black's Knight

Nd8 may have been better here, forking the rook and b7 pawn, looking to create weakened isolated pawns