{"product_id":"the-toughest-sudoku-puzzle-book-200-puzzles-to-sharpen-your-brain-9781646115822","title":"The Toughest Sudoku Puzzle Book: 200+ Puzzles to Sharpen Your Brain","description":"\u003cp\u003e\u003cstrong\u003e200+ supercharged Sudoku to test your skills-and boost your brainpower! \u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eWhether you're already a pro or you're looking to build your abilities, \u003cem\u003eThe Toughest Sudoku Puzzle Book\u003c\/em\u003e will challenge and entertain you with hours of mind-bending fun. Of all the Sudoku puzzle books, this one's action-packed with 240 clever, creative Sudoku puzzles, plus complete explanations of 14 fail-proof solving techniques to guarantee your success. \u003c\/p\u003e\u003cp\u003eUnlike standard Sudoku puzzle books, this book contains 18 variations to keep your brain engaged and your pencil sharp. Difficulty increases throughout, culminating in a bonus chapter that will stretch the minds of even the most advanced players. Finally, a helpful hints section provides 3 clues per puzzle to get you over any hurdle. \u003c\/p\u003e\u003cp\u003eThis extraordinary standout among Sudoku puzzle books includes: \u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLevel up\u003c\/strong\u003e-Test your problem-solving skills with three epic levels of difficulty, including tough, tougher, and even tear-your-hair-out! \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVexing variety\u003c\/strong\u003e-Tackle a wide range of Sudoku types like Twodoku, Jigsaw, Nonconsecutive, and Samurai, which you won't find in other Sudoku puzzle books. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecrets revealed\u003c\/strong\u003e-Discover how to play smarter with 14 basic, intermediate, and advanced techniques designed for Sudoku puzzle books players of all levels. \u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSince it's one of the most challenging Sudoku puzzle books on the planet, this book will blow your mind! \u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAbout the Author\u003c\/b\u003e\u003cbr\u003eBrother and sister team \u003cb\u003eCRISTINA and RICK SMITH\u003c\/b\u003e have been solving puzzles together their whole lives. They are the award-winning authors of the \u003ci\u003eYoga for the Brain\u003c\/i\u003e series of puzzle books. Learn more at www.YogafortheBrain.com. \u003cp\u003e\u003c\/p\u003e\u003cb\u003eCRISTINA AND RICK SMITH\u003c\/b\u003e are a brother-and-sister team and the award-winning authors of the \u003ci\u003eYoga for the Brain\u003c\/i\u003e puzzle book series. They love doing jigsaw, word, and logic puzzles, and have been solving them together their whole lives.\u003cbr\u003e","brand":"Callisto","offers":[{"title":"Default Title","offer_id":50567663911186,"sku":"9781646115822","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0831\/4771\/8930\/files\/img_d0ba340b-6776-452c-b3c2-1b0712e8a98b.jpg?v=1731925266","url":"https:\/\/surprise-castle.myshopify.com\/products\/the-toughest-sudoku-puzzle-book-200-puzzles-to-sharpen-your-brain-9781646115822","provider":"Surprise Castle","version":"1.0","type":"link"}