{"product_id":"hard-logic-puzzles-with-answers-stostone-puzzles-100-logic-grid-puzzles-with-answers-9781981082186","title":"Hard Logic Puzzles With Answers: Stostone Puzzles 100 Logic Grid Puzzles With Answers","description":"\u003cp\u003e\u003cb\u003eStostone\u003c\/b\u003e (\"Stone on Stone\") is a logic puzzle invented by Nikoli. A rectangular or square grid is divided into regions. The goal is to blacken some cells of a grid (\"stones\") according to the rules.\u003c\/p\u003e\u003cbr\u003e","brand":"Independently Published","offers":[{"title":"Default Title","offer_id":50372017586450,"sku":"9781981082186","price":8.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0831\/4771\/8930\/files\/img_693e0e23-afcc-404f-aa89-b3002630d6b8.jpg?v=1728543194","url":"https:\/\/surprise-castle.myshopify.com\/products\/hard-logic-puzzles-with-answers-stostone-puzzles-100-logic-grid-puzzles-with-answers-9781981082186","provider":"Surprise Castle","version":"1.0","type":"link"}