The most diabolically difficult KenKen puzzles yet! Get ready for 100 of the most brain-bending, mind-melting KenKen puzzles ever. This collection of super hard puzzles has been hand-selected by our most experienced team of "Kenerators" to intrigue you, challenge you, and keep you entertained for hours. Take it can never get enough of KenKen, "The Puzzle That Makes You Smarter."