Provoking ...f7-f5 in order to open the a2-g8 diagonal towards the black king.

With the threat of 4 Be5+, winning a piece.

5...Rxd6 6.Be5+! Kh7 7.Rxb7+ +-

and Black resigned in view of Be5+ on the next move.

Provoking a decisive weakness in the white pawn structure.

2.Nc1 Rxe3+! 3.fxe3 Qxg3+ 4.Kd1 Qg4+! 5.Ke1 Qg2 and the threats cannot be parried.
2.Nf4 g5 3.Nd3 f4 Black's attack is also irresistible.

Creating a decisive pin along the e-file.

White resigned.

Provoking a weakness on Black's kingside.