Classical enigma

The key to the position lies in the activation of the bishop b2, so 21.Nf6+! is a good start for White. But following 21...gxf6 22.Qg3+ Kh8 23.exf6 Bxf6 only one continuation cracks the code of the black king. Which one?
A) 24.Ng5
B) 24.Ne5
C) 24.Qh4

Oliver Reeh in ChessBase Magazine
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Introduction by Karsten Müller
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