{"product_id":"extreme-sudoku-book-four-100-hard-to-solve-25-x-25-sudoku-puzzles-with-solutions-9781981586080","title":"Extreme Sudoku Book Four: 100 Hard To Solve 25 x 25 Sudoku Puzzles With Solutions","description":"100 very hard 25 number Sudoku puzzles. One puzzle on a page Using a 25 x 25 square grid. These puzzles are for expert Sudoku players. The solutions are in the back of the book.\u003cbr\u003eThis is a Sudoku book for adults.\u003cbr\u003e","brand":"Createspace Independent Publishing Platform","offers":[{"title":"Default Title","offer_id":51735706403090,"sku":"9781981586080","price":5.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0831\/4771\/8930\/files\/img_1c9bfd7b-2fb5-4e11-8dda-c4dd04016518.jpg?v=1763541967","url":"https:\/\/surprise-castle.myshopify.com\/products\/extreme-sudoku-book-four-100-hard-to-solve-25-x-25-sudoku-puzzles-with-solutions-9781981586080","provider":"Surprise Castle","version":"1.0","type":"link"}