Published: 2014-10-02
Mental Floss, a popular online magazine, has just published an article about the 2014 U.S. Puzzle Championship, which took place earlier this year.
It has lots of statistics about which sorts of puzzles (easy, medium, or hard) that different levels of solvers (regular or elite) should attempt in a competition like this, in order to achieve the best result.
http://mentalfloss.com/article/59132/secrets-us-puzzle-championship
