Answer to Mating Attack Question

The game went: 19. Qh6 g6 20.Rxg6+ fxg6 21. Qxg6+ Kh8 22. Qh6+ Kg8 23. Rg1+ Kf7 24. Qg6#

Also winning is: 19. Rxg7+ Kxg7 20. Qg5+ Kh8 21. Qh6+ Kg8 22. Rg1+ Ng4 23. Qh7#