{"product_id":"the-times-killer-su-doku-the-times-mind-games-9780008673208","title":"The Times Killer Su Doku Book 21: 200 Lethal Su Doku Puzzles","description":"Challenge yourself with number puzzles\u003cp\u003eThe latest volume in the hugely popular Killer Su Doku series from The Times, featuring the highest-quality puzzles with an extra element of arithmetic.\u003c\/p\u003e\u003cp\u003eThese puzzles will test your skills to the limit, adding the challenge of arithmetic and taking Su Doku to a new and even deadlier level of difficulty.\u003c\/p\u003e\u003cp\u003eThe puzzles use the same 9x9 grid as Su Doku but with an added mathematical challenge. The aim is not only to complete every row, column and cube so that it contains the numbers 1-9, it is also necessary to ensure that the outlined cubes add up to the same number as well.\u003c\/p\u003e\u003cp\u003eWith 200 new Moderate, Tricky, Tough and Deadly Killer Su Doku puzzles, there is no chance to ease yourself in with simple puzzles. For those who like to live dangerously and push\u003cbr\u003ebeyond their mental comfort zone, steel yourself for The Times' next, terribly tough instalment.\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e The Times Mind Games\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 0008673209\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9780008673208\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Times Books\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 08\/05\/2025\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 288\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback","brand":"The Times Mind Games","offers":[{"title":"Paperback","offer_id":47001073549567,"sku":"9780008673208","price":13.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_3efc004d-442c-40a6-a61f-7300e5575191.jpg?v=1751599989","url":"https:\/\/www.whiterainbookhouse.com\/products\/the-times-killer-su-doku-the-times-mind-games-9780008673208","provider":"WR Book House","version":"1.0","type":"link"}