Pawn Queening Deflection

The following 3 minute blitz game played at the internet chess club is an excellent example of a deflection sacrifice leading to the promotion of a pawn to a Queen. The opening was a Benko where White managed to create a passed d pawn due to a Benoni-like e5 thrust before Black's queenside play manifested.



chichi1950 from Spain, playing with the Black pieces, must have been feeling quite comfortable with  his Rooks doubled at b2 and d2 with the threat of Rook captures pawn at f2 either drawing easily or perhaps winning.

White's trump is his passed d7 pawn which is a single square from Queening. With White to move, see if you can find a deflection move which either leads to the pawn promoting to a Queen or  the loss of a Rook.