Poisoned pawn variation

5/24/2011 – In yesterday's 5th game of the candidates final Grischuk at this point refrained from 29.Qh3xh7 (diagram) and preferred to exchange queens on c8 instead. What do you think, which black reply made him decline the pawn? A) 29...Kf7 B) 29...Qf5 C) 29...Qg4 The solution is here, but first ponder over it with a larger version of the diagram.

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