This sets up a cheapo, now if Bxf6 Qxf6 to avoid opening the king then Re8 is mate as the d3 bishop covers h7. Positional players will say it seizes the e file.

So black takes aim at the d3 bishop.

Removing the d3 bishop with check. White has to recapture.

Black takes the bishop with the Queen but has forgotten that White's Queen also covers h7. A few hours between moves can do this.

Black is a pawn up, attacks the pawns on f2 and g2 but his back rank is fatally weak. Checkmate!