{"product_id":"9780451223555","title":"Sudoku Iron Man #1","description":"\u003cp\u003e\u003cb\u003e150 of the most fiendishly difficult, never-before-published Sudoku puzzles!\u003c\/b\u003e \u003c\/p\u003e\u003cp\u003eThe brand-new Sudoku puzzle series that puts even the most fervent players' skills to the test. \u003c\/p\u003e\u003cp\u003eThere are those who play Sudoku, and there are those who step it up and play \u003ci\u003eSudoku Iron Man\u003c\/i\u003e. Here are 150 never-before-published puzzles-the most challenging around. This book will have enthusiasts hooked, tackling grid after grid. Even the most avid Sudoku addict will be amazed at the intense challenges \u003ci\u003eSudoku Iron Man\u003c\/i\u003e has to offer...\u003c\/p\u003e","brand":"Penguin Publishing Group","offers":[{"title":"Default Title","offer_id":47016835973360,"sku":"9780451223555","price":9.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/9780451223555_p0.jpg?v=1763703830","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/9780451223555","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}