{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Puzzles, Brainteasers & Mathematical Diversions: A Definitive Collection of the Best Puzzles Ever Devised","author_name":"Erwin Brechers PhD","thumbnail_url":"https://www.ebooknetworking.net/books/184/732/big1847327265.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1847327265.html\">Puzzles, Brainteasers &amp; Mathematical Diversions: A Definitive Collection of the Best Puzzles Ever Devised</a>","width":400,"height":300}