{"product_id":"revenge-of-killer-sudoku-book-djape-9781540369321","title":"Revenge of Killer Sudoku","description":"\u003cstrong\u003eVolume 8 of the most popular series of books with difficult Killer Sudoku puzzles - now even more fun\u0026gt;\u003c\/strong\u003e \u003cbr\u003e Contents: \u003cul\u003e \u003cli\u003e100 Killer Sudoku\u003c\/li\u003e \u003cli\u003e10 Killer Sudoku with all operators (+, -, *, \/)\u003c\/li\u003e \u003cli\u003e10 Frame Killer Sudoku\u003c\/li\u003e \u003cli\u003eand 30 ZERO Killer Sudoku (blank cages)\u003c\/li\u003e \u003c\/ul\u003e Difficulty levels are COL-THINKER-BRAIN-IQ. The easiest level (EASY) has been removed  A majority of puzzles are THINKER and BRAIN, with lots of IQs, too. Zero Killer Sudoku puzzles are mostly IQs, of course. \u003cbr\u003e All puzzles in this book are NEW. \u003cbr\u003e There is also a special gift at the very end of the book    \u003cbr\u003e Are you ready for this?","brand":"WoB","offers":[{"title":"- \/ - \/ -","offer_id":51035565228305,"sku":"","price":0.0,"currency_code":"USD","in_stock":true},{"title":"US \/ NEW \/ INGRAM","offer_id":51035567653137,"sku":"NIN9781540369321","price":9.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1540369323.jpg?v=1750925637","url":"https:\/\/www.worldofbooks.com\/products\/revenge-of-killer-sudoku-book-djape-9781540369321","provider":"World of Books ","version":"1.0","type":"link"}