{"product_id":"straights-puzzles-book-200-oliver-quincy-9781722013790","title":"Straights Puzzles Book - 200 Master Puzzles 9x9 (Volume 3)","description":"\u003cb\u003eAbout Book\u003c\/b\u003e\u003cbr\u003eThis book introduces you to the amazing world of Straights puzzles. It will help you understand the rules of this puzzle. This book is perfect for players of all skill levels and ages. You will find \u003cb\u003e200\u003c\/b\u003e exciting puzzles, both for beginners and for professionals. \u003cp\u003e\u003c\/p\u003e\u003cb\u003eHOW TO PLAY\u003c\/b\u003e\u003cbr\u003eIt is a \u003cb\u003e9x9\u003c\/b\u003e grid, partially divided by black cells into compartments. \u003cp\u003e\u003c\/p\u003e\u003cli\u003eEach compartment, vertically or horizontally, must contain a straight - a set of consecutive numbers, but in any order (for example: 2-1-3-4).\u003cbr\u003e\n\u003c\/li\u003e\u003cli\u003eThe aim is to fill all white cells with the numbers from 1 to 9, same rule and goal as Sudoku.\u003cbr\u003e\n\u003c\/li\u003e\u003cli\u003eNo single number can repeat in any row or column.\u003cbr\u003e\n\u003c\/li\u003e\u003cli\u003eAdditional clues are set in some of the black cells - these numbers remove that digit as an option in the row and column. Such digits do not form part of any straight. \u003cp\u003e\u003c\/p\u003eAs Straights belongs to the same class of puzzles as Sudoku the puzzle can demonstrate a wide spectrum of relative difficulty. The grade is determined by a combination of opportunities to solve at each stage and the difficulty of the strategy that grants each solution.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Oliver Quincy\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 1722013796\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9781722013790\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Createspace Independent Publishing Platform\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 06\/28\/2018\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 140\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.43lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 9.02h x 5.98w x 0.30d\u003c\/li\u003e","brand":"Oliver Quincy","offers":[{"title":"Paperback","offer_id":46962672042239,"sku":"9781722013790","price":7.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_add582f2-8660-40c3-b345-a10d4c5a9082.jpg?v=1750652174","url":"https:\/\/www.whiterainbookhouse.com\/products\/straights-puzzles-book-200-oliver-quincy-9781722013790","provider":"WR Book House","version":"1.0","type":"link"}