{"product_id":"absolutely-nasty-sudoku-frank-longo-9781454962281","title":"Absolutely Nasty Sudoku: Even Nastier - Level 4","description":"\u003cb\u003eGluttons for punishment rejoice! The popular series of ultra-hard sudoku is back. \u003c\/b\u003e \u003cp\u003e\u003c\/p\u003e Just when it seemed safe to go back into the puzzle section of the bookstore ... here comes another collection of the hardest sudoku known to humankind. \u003cp\u003e\u003c\/p\u003e The newest four volumes of this bestselling series range from Level 1 to Level 4, increasing in difficulty as they go. In Level 1, solvers will encounter 242 puzzles difficult enough to make them say, \"Wait ... this is the easiest level?\" \u003cp\u003e\u003c\/p\u003e After the book is complete, three more levels await those who are daring enough to continue!\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Frank Longo\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 1454962283\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9781454962281\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Puzzlewright Press\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 05\/05\/2026\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 160\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback","brand":"Frank Longo","offers":[{"title":"Paperback","offer_id":48454235160831,"sku":"9781454962281","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_5e287e11-3e92-4fc0-878c-7a3b474d3d35.jpg?v=1777304976","url":"https:\/\/www.whiterainbookhouse.com\/products\/absolutely-nasty-sudoku-frank-longo-9781454962281","provider":"WR Book House","version":"1.0","type":"link"}