{"product_id":"the-times-ultimate-killer-su-doku-book-2-120-challenging-puzzles-from-the-times","title":"The Times Ultimate Killer Su Doku Book 2: 120 challenging puzzles from The Times","description":"\u003cp\u003ePrepare for the extreme mental challenge of 120 Deadly-level Killer puzzles, including, for the first time ever, 20 Extra Deadly, to really test your limits: this is the only series in which you′ll find such a torturous collection.\u003c\/p\u003e\u003cp\u003e The Times Ultimate Killer Su Doku is not for the fainthearted. The puzzles use the same 9x9 grid as Su Doku, and have an added mathematical challenge. The aim is not only to complete every row, column and cube so that it contains the digits 1-9, it is also necessary to ensure that the outlined cubes add up to the same number as well. \u003c\/p\u003e\u003cp\u003e But unlike with previous books, there is no chance to ease yourself in with Easy, or even Tough puzzles: this book is the ultimate Killer Su Doku - completely deadly.\u003c\/p\u003e","brand":"The Times Mind Games","offers":[{"title":"Trade Paperback","offer_id":52343757570354,"sku":"9780007364527","price":7.96,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0988\/7934\/0850\/files\/9780007364527_e31dc4cd-f59c-4c4a-b8ce-fbd77fb536cb.jpg?v=1790297216","url":"https:\/\/53rdstreetbooks.com\/products\/the-times-ultimate-killer-su-doku-book-2-120-challenging-puzzles-from-the-times","provider":"53rd Street Books","version":"1.0","type":"link"}