{"product_id":"the-big-book-of-logic-mykola-krylov-9781544164205","title":"The Big Book of Logic Puzzles - Masyu 400 Hard (Volume 17)","description":"Masyu is a type of logic puzzle designed and published by Nikoli. The purpose of its creation was to present a puzzle that uses no numbers or letters and yet retains depth and aesthetics.Masyu is played on a rectangular grid of squares, some of which contain circles, each circle is either \"white\" (empty) or \"black\" (filled). The goal is to draw a single continuous non-intersecting loop that properly passes through all circled cells. The loop must \"enter\" each cell it passes through from the center of one of its four sides and \"exit\" from a different side, all turns are therefore 90 degrees. The two varieties of circle have differing requirements for how the loop must pass through them: -White circles must be traveled straight through, but the loop must turn in the previous and\/or next cell in its path.-Black circles must be turned upon, but the loop must travel straight through the next and previous cells in its path.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Mykola Krylov\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 1544164203\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9781544164205\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 02\/27\/2017\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 272\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.81lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 9.02h x 5.98w x 0.57d","brand":"Mykola Krylov","offers":[{"title":"Paperback","offer_id":44130599796991,"sku":"9781544164205","price":10.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_959f8af0-8913-4f33-8ea9-c1a92883f9cc.jpg?v=1687470248","url":"https:\/\/www.whiterainbookhouse.com\/products\/the-big-book-of-logic-mykola-krylov-9781544164205","provider":"WR Book House","version":"1.0","type":"link"}