{"product_id":"futoshiki-puzzle-books-400-easy-to-master-puzzles-6x6-volume-2-9781697217063","title":"Futoshiki Puzzle Books - 400 Easy to Master Puzzles 6x6 (Volume 2)","description":"\u003cb\u003eFutoshiki\u003c\/b\u003e (from Japanese, literally \"\u003ci\u003enot equal\u003c\/i\u003e\"; also known as \"\u003ci\u003eHutoshiki\u003c\/i\u003e\", \"\u003ci\u003eUnequal\u003c\/i\u003e\") is a logic puzzle. \u003cp\u003e\u003c\/p\u003eThe puzzle is played on a square grid, such as 6 x 6. The objective is to place the numbers 1 to 6 (or whatever the dimensions are) such that each row, and column contains each of the digits 1 to 6. \u003cp\u003e\u003c\/p\u003eSome digits may be given at the start. In addition, inequality constraints are also initially specified between some of the squares, such that one must be higher or lower than its neighbour. \u003cbr\u003eThese constraints must be honoured as the grid is filled out.\u003cbr\u003e","brand":"Independently Published","offers":[{"title":"Default Title","offer_id":50368753205522,"sku":"9781697217063","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0831\/4771\/8930\/files\/img_96c78541-89b3-4cfe-9d32-3579f3fdf90e.jpg?v=1728513400","url":"https:\/\/surprise-castle.myshopify.com\/products\/futoshiki-puzzle-books-400-easy-to-master-puzzles-6x6-volume-2-9781697217063","provider":"Surprise Castle","version":"1.0","type":"link"}