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Very Challenging Puzzles

Here is the section of our Puzzle Book Ninja website reserved especially for puzzle solvers who love more challenging puzzles. Themes are varied, puzzle types are varied. Puzzles support brain health, activate the puzzle ninja within, and stimulate creativity. Check back often for new challenging puzzles.



Father's Day!

Where does the time go? Now, we are gearing up for Father's Day! Here are some fun and engaging puzzles to share with kids at home! Father's Day Puzzles. Six categories available!

We continue to grow! Our 84 Earth Space Puzzles Collection has all be catalogued and can be found here: Earth Space Word Searches.