{"product_id":"hard-sudoku-create-calm-9781923730557","title":"Hard Sudoku: 100 Challenging Sudoku Puzzles for Adults- Bold, Beautifully Designed Pretty Puzzle Book for Serious Solvers","description":"\u003cp\u003e\u003cstrong\u003eFor solvers who've outgrown \"easy.\"\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003eIf medium sudoku barely slows you down anymore, this is the one. \u003cstrong\u003e100 genuinely challenging sudoku puzzles\u003c\/strong\u003e, built for solvers who want to work for the win - advanced techniques, tighter logic chains, no shortcuts. And because a serious puzzle deserves a serious-looking book, it comes wrapped in a bold, hand-illustrated cover that looks nothing like the puzzle books you've outgrown.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003eThis is sudoku as it should be at this level: demanding, but never unfair. Every puzzle has been checked to ensure exactly one valid solution - no guesswork, no dead ends, just pure logic.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIn this book, you'll find: \u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e100 hard sudoku puzzles\u003c\/strong\u003e, built for experienced solvers who want a real challenge\u003c\/li\u003e\n\u003cli\u003eEvery puzzle solvable through logic alone - no lucky guessing required\u003c\/li\u003e\n\u003cli\u003eLarge 9×9 grids, one per page, so you can focus on the puzzle, not the print\u003c\/li\u003e\n\u003cli\u003eA full answer key for every puzzle\u003c\/li\u003e\n\u003cli\u003eA striking cover that looks as sharp as the puzzles inside\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAnd much, much more\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003eYou don't need to prove anything to anyone - but if you want puzzles that finally push back, this is where you'll find them.\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Create Calm\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 192373055X\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9781923730557\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Rocket Pants Pty Ltd\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 07\/03\/2026\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 120\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.34lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 8.27h x 5.83w x 0.25d","brand":"Create Calm","offers":[{"title":"Paperback","offer_id":49002309714175,"sku":"9781923730557","price":9.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/www.whiterainbookhouse.com\/products\/hard-sudoku-create-calm-9781923730557","provider":"WR Book House","version":"1.0","type":"link"}