{"product_id":"hitori-250-challenging-logic-puzzles-9x9-9781728736396","title":"Hitori: 250 Challenging Logic Puzzles 9x9","description":"250 Challenging Logic Puzzles 9x9.Hitori (from Japanese \"Hitori ni shite kure\"; literally \"let me alone\") is played on a grid of squares. At the beginning, each cell contains a number. The goal is to paint out some cells so that there are no duplicate numbers in any row or column, similar to the solved state of a Sudoku puzzle (except with black squares added to the grid).Orthogonal connections are important as well; painted-out (black) cells cannot be connected orthogonally, and the other cells must be connected orthogonally in a single group (i.e. no two black squares can be adjacent to each other, and all un-painted squares must be connected, horizontally or vertically, to create a single shape).\u003cbr\u003e","brand":"Independently Published","offers":[{"title":"Default Title","offer_id":50362745749778,"sku":"9781728736396","price":8.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0831\/4771\/8930\/files\/img_2c55da2a-60a1-4b5a-8d32-9af824e1ff12.jpg?v=1728394187","url":"https:\/\/surprise-castle.myshopify.com\/products\/hitori-250-challenging-logic-puzzles-9x9-9781728736396","provider":"Surprise Castle","version":"1.0","type":"link"}