{"product_id":"large-print-sudoku-16x16-100-hard-puzzles-very-difficult-hexadoku-with-solutions-sudoku-variant-puzzle-book-for-adults-9798701535297","title":"Large Print Sudoku 16x16 - 100 Hard Puzzles: Very Difficult Hexadoku with Solutions - Sudoku Variant Puzzle Book for Adults","description":"Large Print Sudoku 16x16 - 100 Hard Puzzles\u003cp\u003eUnlike classic Sudoku, Sudoku 16x16 (also called hexadoku) is based on a 16x16 grid, and the object is to place the numbers 1 to 16 in the empty squares so that each row, each column, and each 4x4 box contains the same number only once.\u003c\/p\u003e\u003cp\u003eThere are 100 hard puzzles in this book.\u003c\/p\u003e\u003cp\u003eDue to the large grid and the difficulty level, this book is a real challenge even for Sudoku experts.\u003c\/p\u003e\u003cbr\u003e","brand":"Independently Published","offers":[{"title":"Default Title","offer_id":50380505350418,"sku":"9798701535297","price":7.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0831\/4771\/8930\/files\/img_50fbf1c3-b8c7-4039-a534-56f514b3cc8e.jpg?v=1737075498","url":"https:\/\/surprise-castle.myshopify.com\/products\/large-print-sudoku-16x16-100-hard-puzzles-very-difficult-hexadoku-with-solutions-sudoku-variant-puzzle-book-for-adults-9798701535297","provider":"Surprise Castle","version":"1.0","type":"link"}