{"product_id":"sudoku-book-500-extra-hard-puzzles-sudoku-puzzle-book-with-only-one-level-of-difficulty-9781544981710","title":"Sudoku Book 500 Extra Hard Puzzles: Sudoku Puzzle Book With Only One Level of Difficulty","description":"Sharpen up your mind and improve your memory by playing Sudoku every day. Sudoku stimulates your mind, increases concentration and makes you feel happy by giving you a sense of accomplishment. It is said it can also reduce the chance of developing Alzheimers. \u003cp\u003e\u003c\/p\u003e This Sudoku puzzle book contains 500 puzzles with a single level of difficulty, so there are no wasted puzzles. There are 4 puzzles per page and solutions are at the end of the book.\u003cbr\u003e","brand":"Createspace Independent Publishing Platform","offers":[{"title":"Default Title","offer_id":50855100481810,"sku":"9781544981710","price":8.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0831\/4771\/8930\/files\/img_90d2c8f4-c7cf-4fbf-8706-1fe8e724d7f6.jpg?v=1737477676","url":"https:\/\/surprise-castle.myshopify.com\/products\/sudoku-book-500-extra-hard-puzzles-sudoku-puzzle-book-with-only-one-level-of-difficulty-9781544981710","provider":"Surprise Castle","version":"1.0","type":"link"}