KenKen can be described simply as sudoku with basic math (addition, subtraction and/or multiplication and division). It's a fun, addictive, clever puzzle that's winning fans the world over. Already more than one million KenKen books have been sold in Japan and is a huge hit in The Times of London. Now, America can catch KenKen fever! Volume 2 contains 100 easy multiplication and division KenKen puzzles with ""How to Solve"" instructions and an introduction by puzzlemaster Will Shortz. | Will Shortz Presents KenKen Easy Volume 2 by Tetsuya Miyamoto, Paperback | Indigo Chapters