Why is this a blunder?

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Avatar of davidtio
I am chess beginner and trying to analyze my move using chess.com game review. My queen move was to prepare for checkmating at black king side. I can't figure out why it was flag as blunder. Did I miss something really obvious?
Avatar of IMKeto

You didn't post the game or position in question.

Avatar of davidtio

 

Sorry for the missing image earlier. Trying to do it from phone and I can't seem to find the option to include image. My Queen move to d1 was flagged as blunder. 

 

The only thing that I can see is g6 would stop my mate idea, but surely it is more like inaccuracy instead of blunder ?

Avatar of IMKeto

 

Avatar of davidtio

Thank you for the input. Now I see it. I can just use my bishop to take h7 pawn first and whatever is the response I can move the queen to position later to checkmate. Thank you IMKeto.

Avatar of IMKeto

Glad to help.