Tactics: Blomqvist - Kleinman, Sants 2017.

As reported on the CFC Newsfeed, FM Michael Kleinman completed his requirements for the FIDE IM title at the Sants Open in Barcelona last week. In round 3 he played Swedish GM Erik Blomqvist. In the diagram it is White to move, should he attack with Qxf7 or defend with Re1?

Hint

Spoiler: Highlight to view
This one isn't about finding candidate moves, but the only moves necessary to win (or survive).

I know... that's not really a hint.

Solution in the game player below.


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 Round:  Result:

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