1Volume 2...for Experts! Get ready for 100 more of the most brain-bending, mind-melting KenKen puzzles ever! This second collection of expert puzzles, hand-selected by our most experienced team of "Kenerators," is engineered to mystify, challenge, and entertain solvers for hours on end. Find out why Will Shortz, NPR Puzzle Master and New York Times Puzzle Editor calls KenKen "The most addictive puzzle since Sudoku!" You can never get enough of KenKen, "The Puzzle That Makes You Smarter."