{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Across the Board: The Mathematics of Chessboard Problems (Princeton Puzzlers)","author_name":"John J. Watkins","thumbnail_url":"https://www.ebooknetworking.net/books/069/115/big0691154988.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0691154988.html\">Across the Board: The Mathematics of Chessboard Problems (Princeton Puzzlers)</a>","width":400,"height":300}