{"product_id":"9781545009581","title":"Creator Of Puzzles - Calcudoku 240 Expert Puzzles 7X7 (Volume 4)","description":"Calcudoku (also known as \"Mathdoku\") is a mathematical and logical puzzle loosely similar to Sudoku.The objective is to fill the grid in with the digits 1 through N (where N is the number of rows or columns in the grid) such that:- Each row contains exactly one of each digit.- Each column contains exactly one of each digit.- Each bold-outlined group of cells (block) contains digits which achieve the specified result using the specified mathematical operation: addition (+), subtraction (-), multiplication (?), and division (?).- Unlike Killer Sudoku, digits may repeat within a block.\u003cbr\u003e\u003cul\u003e\n\u003cli\u003e• \u003cb\u003eAuthor: \u003c\/b\u003eVeronika Lokaly\u003c\/li\u003e\n\u003cli\u003e• \u003cb\u003ePublisher: \u003c\/b\u003eCreateSpace Independent Publishing Platform\u003c\/li\u003e\n\u003cli\u003e• \u003cb\u003ePublication Date: \u003c\/b\u003eMar 29, 2017\u003c\/li\u003e\n\u003cli\u003e• \u003cb\u003eNumber of Pages: \u003c\/b\u003e60 pages\u003c\/li\u003e\n\u003cli\u003e• \u003cb\u003eLanguage: \u003c\/b\u003eEnglish\u003c\/li\u003e\n\u003cli\u003e• \u003cb\u003eBinding: \u003c\/b\u003ePaperback\u003c\/li\u003e\n\u003cli\u003e• \u003cb\u003eISBN-10: \u003c\/b\u003e1545009589\u003c\/li\u003e\n\u003cli\u003e• \u003cb\u003eISBN-13: \u003c\/b\u003e9781545009581\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CreateSpace Independent Publishing Platform","offers":[{"title":"Default Title","offer_id":50328858165553,"sku":"9781545009581","price":12.47,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/8215\/8385\/files\/9781545009581__17633.jpg?v=1732085875","url":"https:\/\/www.recomparo.com\/products\/9781545009581","provider":"ReComparo.com","version":"1.0","type":"link"}