Good Wörishofen (part five)

I GOT lucky in round four.
Having blundered a pawn in the opening, I sacrificed a second one for attacking chances.

Position after White played 25.g2-g3 in Stefan Wibel (1768) - Spanton (1901)

White's last move was the best in the position, according to my analysis engines.
I played ...
25...Nxg3!?
... having seen that after ...
26.fxg3 Rxg3+ 27.Kh2
(Not 27.Kg1?? Qe4+, and mate follows)
... Black gets nowhere with 27...Rg2+ 28.Kh1.
Instead, I played ...
27...Rgxe3
Judging by my opponent's body language, he had missed this possibility.
After some considerable thought, there followed:
28.Qf5?? Re2+ 29.Qf2 Rxf2+ 30.Rxf2 h6 (1-0, 35 moves).
But going back to the position after 27...Rge3, White wins easily with 28.Qg4, eg 28...Re2+ 29.Kh1 Qc6+ 30.Qf3, when his king is plenty safe enough and White is up a bishop for a pawn.