Perfect for solvers who just can't get enough, this colossal collection contains 500 easy to hard KenKen puzzles - perfect for novices and experts alike. Features:· 500 easy-to-hard KenKen puzzles· Edited by legendary New York Times crossword editor Will Shortz· Big grids with lots of space for easy solving | Will Shortz Presents The Ultimate KenKen Omnibus by Tetsuya Miyamoto, Paperback | Indigo Chapters