{"product_id":"binary-120-easy-to-john-collins-9798606748044","title":"Binary - 120 Easy To Master Puzzles 7x7 - 2","description":"Binary puzzle (also known as \"Binairo\", \"Takuzu\", \"Tohu wa Vohu\") is a logic puzzle that you can solve by using only zeros and ones. The rectangular or square grid should fill the numbers in accordance with the following rules: - Each row and each column contain the same number of digits \"1\" as digits \"0\" (or one more for odd sized grids). - The same number can only be in no more than two cells in a row. - Each line must be unique, and each column must be unique. In the book you will find a description and examples of solutions for all puzzles.The book is for those who like logic and math problems. Decide, developing and improving.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e John Collins\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 8606748048\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9798606748044\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Independently Published\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 01\/30\/2020\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 72\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.24lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 9.02h x 5.98w x 0.15d","brand":"John Collins","offers":[{"title":"Paperback","offer_id":46767240478975,"sku":"9798606748044","price":6.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_d1eb079e-0927-4e22-93f8-4891ad4d5e6e.jpg?v=1744169239","url":"https:\/\/www.whiterainbookhouse.com\/products\/binary-120-easy-to-john-collins-9798606748044","provider":"WR Book House","version":"1.0","type":"link"}