{"product_id":"killer-sudoku-400-very-hard-puzzles-vol12-9781099858598","title":"Killer Sudoku - 400 Very Hard Puzzles vol.12","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 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.\u003cbr\u003e","brand":"Independently Published","offers":[{"title":"Default Title","offer_id":50848593084690,"sku":"9781099858598","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0831\/4771\/8930\/files\/img_a59145b3-763f-4333-9402-c85a2790215b.jpg?v=1737378127","url":"https:\/\/surprise-castle.myshopify.com\/products\/killer-sudoku-400-very-hard-puzzles-vol12-9781099858598","provider":"Surprise Castle","version":"1.0","type":"link"}