{"product_id":"black-belt-kakuro-150-puzzles-9781402739361","title":"Black Belt Kakuro: 150 Puzzles","description":"Kakuro language-free number puzzle that uses pure logic and requires just simple arithmetic to solve. This book is a part of a multilevel series of belt books, each containing 150 kakuros. These books take their cue from the belt colors in martial arts such as: white is for novices, and black for those consummate experts who crave a challenge.\u003cbr\u003e","brand":"Puzzlewright","offers":[{"title":"Default Title","offer_id":50629046731026,"sku":"9781402739361","price":8.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0831\/4771\/8930\/files\/img_71759a09-fae6-488f-81ae-c90623cb7bd9.jpg?v=1732718426","url":"https:\/\/surprise-castle.myshopify.com\/products\/black-belt-kakuro-150-puzzles-9781402739361","provider":"Surprise Castle","version":"1.0","type":"link"}