7NOT TOO EASY, NOT TOO HARD...THESE KENKEN PUZZLES ARE JUST RIGHT!Perfect for part-time players and experienced puzzlers alike who want to challenge themselves without pulling their hair out, this book of 4x4, 5x5 and 6x6 KenKen puzzles will entertain you for hours.Grab a pencil, pour yourself a cup of coffee or tea, and enjoy 200 of the most enjoyable and stress-free KenKen puzzles ever. These totally fun, totally addicting puzzles have been hand-selected by our most experienced team of "Kenerators" to intrigue you and challenge you without the requirement of having won a Nobel Prize in Mathematics to solve. Take it anywhere...you can never get enough of KenKen, "The Puzzle That Makes You Smarter."