{"product_id":"deadliest-killer-sudoku-book-djape-9781540452740","title":"Deadliest Killer Sudoku","description":"This is volume 4 of the acclaimed series of books with the most difficult Killer Sudoku puzzles. \u003cb\u003eAll puzzles in this volume are new, previously unpublished.\u003c\/b\u003e\u003cbr\u003e It contains only puzzles of the 3 hardest levels of difficulty: BRAIN, IQ and INSANE, with addition of a few puzzles of an even more fiendish kind - Zero Killer Sudokus. \u003cbr\u003e\u003cul\u003eContents: \u003cli\u003e40 BRAIN (5 ZERO)\u003c\/li\u003e \u003cli\u003e60 IQ (5 ZERO)\u003c\/li\u003e \u003cli\u003e12 totally INSANE (6 ZERO INSANE)\u003c\/li\u003e \u003c\/ul\u003e For a total of 112 toughest Killer Sudoku puzzles\u0026gt;\u003cbr\u003e By no means is this a book for a novice Killer Sudoku solver. It is intended only for the most experienced and most persistent of those who are already masters at solving Sudokus with sums. \u003cbr\u003e So. are you up for this challenge?","brand":"WoB","offers":[{"title":"US \/ GOOD \/ SBYB","offer_id":50389295890705,"sku":"CIN1540452743G","price":4.17,"currency_code":"USD","in_stock":false},{"title":"US \/ NEW \/ INGRAM","offer_id":53223561330961,"sku":"NIN9781540452740","price":11.99,"currency_code":"USD","in_stock":true},{"title":"GB \/ GOOD \/ INTERNAL","offer_id":53631111790865,"sku":"GOR014988439","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1540452743.jpg?v=1751308320","url":"https:\/\/www.worldofbooks.com\/products\/deadliest-killer-sudoku-book-djape-9781540452740","provider":"World of Books ","version":"1.0","type":"link"}