{"product_id":"9781974633067","title":"Quick And Detailed Solutions Of Ultra Sudoku : 500 Puzzles For Beginner To Expert Players","description":"The 500 puzzles in Ultra Sudoku are excellent exercices for every player. Stephane Lepage gives two rules , named here single putting and single posting. They are sufficient for finishing 450 puzzles ; but other rules are necessary for the 50 other puzzles.Chapter 1 finishes 361 puzzles with single putting rule.Chapter 2 finishes 89 puzzles with single posting rule.Chapter 3 finishes 34 puzzles with multiple putting rule.Chapter 4 finishes 13 puzzles with covering technique.Chapter 5 uses perfect rectangles to prove that puzzle 134 and puzzle 203 have many solutions.Chapter 6 studies the difficult puzzle 391.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003e| \u003cb\u003eAuthor: \u003c\/b\u003eKhoan Vokhac, Mr.\u003c\/li\u003e\n\u003cli\u003e| \u003cb\u003ePublisher: \u003c\/b\u003eCreatespace Independent Publishing Platform\u003c\/li\u003e\n\u003cli\u003e| \u003cb\u003ePublication Date: \u003c\/b\u003eAug 17, 2017\u003c\/li\u003e\n\u003cli\u003e| \u003cb\u003eNumber of Pages: \u003c\/b\u003e118 pages\u003c\/li\u003e\n\u003cli\u003e| \u003cb\u003eLanguage: \u003c\/b\u003eEnglish\u003c\/li\u003e\n\u003cli\u003e| \u003cb\u003eBinding: \u003c\/b\u003ePaperback\u003c\/li\u003e\n\u003cli\u003e| \u003cb\u003eISBN-10: \u003c\/b\u003e1974633063\u003c\/li\u003e\n\u003cli\u003e| \u003cb\u003eISBN-13: \u003c\/b\u003e9781974633067\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CreateSpace Independent Publishing Platform","offers":[{"title":"Default Title","offer_id":49217523220785,"sku":"9781974633067","price":11.86,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/8215\/8385\/files\/9781974633067__60222_55a740ef-657a-452d-a719-b1b88601b4b1.jpg?v=1717000931","url":"https:\/\/www.recomparo.com\/products\/9781974633067","provider":"ReComparo.com","version":"1.0","type":"link"}