{"product_id":"killer-sudoku-200-hard-david-smith-9781674746371","title":"Killer Sudoku - 200 Hard to Master Puzzles 9x9 vol.25","description":"Killer Sudoku is a mix of Sudoku and Kakuro. Your goal is the same as in regular sudoku: fill every row, column and 3x3 region with the numbers 1-9 once. The difference is how you arrive at those numbers.The objective is to fill the grid with numbers from 1 to 9 in a way that the following conditions are met: Each row, column, and nonet contains each number exactly once.The sum of all numbers in a cage must match the small number printed in its corner.No number appears more than once in a cage. (This is the standard rule for killer sudokus, and implies that no cage can include more than 9 cells.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e David Smith\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 1674746377\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9781674746371\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Independently Published\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 12\/12\/2019\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 118\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.37lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 9.00h x 6.00w x 0.25d","brand":"David Smith","offers":[{"title":"Paperback","offer_id":44126450647295,"sku":"9781674746371","price":6.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_a4599928-2c41-4851-8476-3013393256d2.jpg?v=1687448254","url":"https:\/\/www.whiterainbookhouse.com\/products\/killer-sudoku-200-hard-david-smith-9781674746371","provider":"WR Book House","version":"1.0","type":"link"}