{"product_id":"500-sudoku-puzzles-medium-and-hard-brain-gym-series-book-9781943828302","title":"500 Sudoku Puzzles, Medium and Hard: Brain Gym Series Book","description":"Put your brain through it's paces with this Brain Gym book of 500 Sudoku puzzles, containing 250 medium difficulty and 250 hard. We exercise our bodies but our brains need a workout too  Sudoku helps keep your brain healthy and functioning well. Challenge yourself to finish all the puzzles without cheating  This book contains solutions to all the puzzles. 178 pages, 4 puzzles per page. 8.5 by 11\".\u003cbr\u003e","brand":"Fat Dog Publishing, LLC","offers":[{"title":"Default Title","offer_id":50476417057042,"sku":"9781943828302","price":8.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0831\/4771\/8930\/files\/img_ff8aa153-659e-4552-9f7b-681730e05c8b.jpg?v=1730250863","url":"https:\/\/surprise-castle.myshopify.com\/products\/500-sudoku-puzzles-medium-and-hard-brain-gym-series-book-9781943828302","provider":"Surprise Castle","version":"1.0","type":"link"}