How is your tournament knowledge as you make your bracket picks?

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DENVER -- Play in the NCAA basketball tournament begins Tuesday with a couple of "play-in" games.

And as you go through with your family and friends to try to work through the reasoning for some of your pics in your bracket ... Kami Carmann shows us that, rest assured, our work family at FOX31 Denver is struggling just as much.

It's estimated that 60 million people fill out at least one bracket each year. The odds of picking a perfect bracket are, get this, 1-in-9.2 quintillion.