{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Mathematical Puzzles for Beginners and Euthusiasts","author_name":"Geoffrey Mott-Smith","thumbnail_url":"https://www.ebooknetworking.net/books/048/620/big0486201988.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0486201988.html\">Mathematical Puzzles for Beginners and Euthusiasts</a>","width":400,"height":300}