Coverting an opponent's blunder

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Avatar of KittyTrouble
After being a piece down for most of the game, my opponent blundered in this position and I had a chance to play for a win, but I missed it. First time posting a puzzle, so hope I did it right!

 

Avatar of KeSetoKaiba

You posted the puzzle correctly. happy.png Tough idea to spot in a game if your fatigue from being behind most of the time was present.