Chess Puzzle no 22

The position below is from Anna Muzychuk versus Zhongyi Tan, FIDE Women's World Cup, 2023, Baku, Azerbaijan. It is white's turn to play. Try to work out how the game continued:

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Chess Puzzle no 4

This position is from Meri Arabidze v. Alexandra Kosteniuk, FIDE Women's World Rapid Chess Championship 2022, Almaty, Kazakhstan.

White has just played:

27. Qg5?

threatening:

28. Qxg7#

How should black respond?

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