{"product_id":"only-the-hardest-puzzles-a-vexing-variety-of-crosswords-sudoku-more-9781646113316","title":"Only the Hardest Puzzles: A Vexing Variety of Crosswords, Sudoku \u0026 More","description":"\u003cp\u003e\u003cb\u003e135 Hair-pulling puzzles to boost your brainpower--they'll blow your mind!\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003eComplex crosswords, cryptic cryptograms, unsolvable Sudoku--they're all here to confound and delight you! Unlike other puzzle books for adults, \u003ci\u003eOnly the Hardest Puzzles\u003c\/i\u003e presents the broadest selection of absolute brain busters that makes solving super challenging and super entertaining--even for seasoned puzzle fanatics.\u003c\/p\u003e \u003cp\u003eFeaturing dozens of epic head-scratchers, \u003ci\u003eOnly the Hardest Puzzles\u003c\/i\u003e goes above and beyond other puzzle books for adults by giving you the most amazing assortment of games to master. You'll also boost your memory and mood while having tons of fun.\u003c\/p\u003e \u003cp\u003eThis standout among puzzle books for adults features: \u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003eLevel up\u003c\/b\u003e--Put your problem-solving skills to the ultimate test with three epic levels of difficulty, including warm-up, tough, and hard-core challenges.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eExcellent variety\u003c\/b\u003e--This top choice in puzzle books for adults delivers a wide range of baffling games, including cryptograms, kakuros, word searches, and more.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eEasy to read, hard to solve\u003c\/b\u003e--Clear, well-designed pages keep this brain-bending book fun and engaging for hours.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003ci\u003eOnly the Hardest Puzzles\u003c\/i\u003e isn't like other puzzle books for adults; it's a real challenge!\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAbout the Author\u003c\/b\u003e\u003cbr\u003e\u003cb\u003e\u003ci\u003eChen, Willa:\u003c\/i\u003e\u003c\/b\u003e - \u003cp\u003e\u003cstrong\u003eWilla Chen\u003c\/strong\u003e is a software engineer at Google who creates and solves puzzles in her spare time. She's the founder of Mission Street Puzzles, an online competition that tests gamers skills in big cities around the world. She grew up in Michigan and now lives in the San Francisco Bay Area. \u003c\/p\u003e","brand":"Callisto","offers":[{"title":"Default Title","offer_id":50437926781202,"sku":"9781646113316","price":10.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0831\/4771\/8930\/files\/img_b7207884-6606-4837-bab8-4d30e58b1a94.jpg?v=1729648207","url":"https:\/\/surprise-castle.myshopify.com\/products\/only-the-hardest-puzzles-a-vexing-variety-of-crosswords-sudoku-more-9781646113316","provider":"Surprise Castle","version":"1.0","type":"link"}