KenKen No-Ops: Sneaky 6x6s and More

For the KenKen challenge-seeker looking for new worlds to conquer, test yourself with the FIRST-EVER book composed entirely of NO-OP puzzles!

In this brand new collection, the operations are not provided; you must solve for these as you go! This book of 100 tantalizing 4x4, 5x5, and mostly 6x6 No-Op puzzles has been curated by our experienced team of "Kenerators" to intrigue you, challenge you, and keep you entertained for hours.
Take it anywhere, and enjoy this entirely new challenge...you can never get enough of KenKen, "The Puzzle That Makes You Smarter."