{"product_id":"skill-builder-sudoku-hard-to-expert-9781454958888","title":"Skill Builder Sudoku: Hard to Expert","description":"\u003cb\u003eBuild up your sudoku skills from easy to expert!\u003c\/b\u003e \u003cp\u003e\u003c\/p\u003e In 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.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAbout the Author\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eFrank Longo\u003c\/b\u003e creates, fact-checks, and edits crossword puzzles, and also specializes in sudoku, having published more than 150 sudoku books. His books have sold more than 5 million copies. His wide array of titles encompasses both standard and variety sudoku puzzles, and includes \u003ci\u003ePause for Puzzles: Sudoku for Midfulness, Sip \u0026amp; Solve Simple Sudoku, The Peaceful Mind Book of Sudoku, Blockbuster Book of Sudoku, Beyond Black Belt Sudoku\u003c\/i\u003e, and \u003ci\u003ePuzzlewright Guide to Solving Sudoku\u003c\/i\u003e (with Peter Gordon). \u003cp\u003e\u003c\/p\u003e\u003cb\u003ePeter Gordon\u003c\/b\u003e has written and edited more than 50 puzzle books, with combined sales of over a million copies. From 2002 to 2008, Gordon was the crossword editor for the \u003ci\u003eNew York Sun\u003c\/i\u003e. He has written more than 120 \u003ci\u003eNew York Times\u003c\/i\u003e crosswords.\u003cbr\u003e","brand":"Puzzlewright Press","offers":[{"title":"Default Title","offer_id":51985484218642,"sku":"9781454958888","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0831\/4771\/8930\/files\/img_bbd40034-38ad-443f-8dea-2154d1b737bc.jpg?v=1769537330","url":"https:\/\/surprise-castle.myshopify.com\/products\/skill-builder-sudoku-hard-to-expert-9781454958888","provider":"Surprise Castle","version":"1.0","type":"link"}