{"product_id":"skill-builder-sudoku-hard-to-expert","title":"Skill Builder Sudoku: Hard to Expert","description":"Condition: BRAND NEW\u003cbr\u003eISBN: 9781454958888\u003cbr\u003eYear: 2026\u003cbr\u003ePublisher: Union Square\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eDescription:\u003cbr\u003e\u003cb\u003eBuild up your sudoku skills from easy to expert!\u003c\/b\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003eIn this three-book series, each book helps solvers build their skills to get from one level to the next. Puzzles in \u003ci\u003eHard to Expert\u003c\/i\u003e are the most challenging and will build on the skills learned in the second book, \u003ci\u003eMedium to Hard\u003c\/i\u003e. Each new technique (such as swordfish and grid coloring) is introduced gradually, giving solvers time to fully master each skill as they progress to complete sudoku mastery.","brand":"ALLIANCE DIST - SF","offers":[{"title":"Default","offer_id":41859909386373,"sku":"PR434178","price":29.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0562\/0213\/3637\/files\/image_TTG9BC99NIM8.jpg?v=1789112450","url":"https:\/\/smartfoxbooks.com.au\/products\/skill-builder-sudoku-hard-to-expert","provider":"Smartfox Books","version":"1.0","type":"link"}