{"product_id":"9780008749095-retail-the-times-kakuro-book-2-200-mathematical-logic-puzzles-the-times","title":"The Times Kakuro Book 2: 200 mathematical logic puzzles (The Times","description":"Test your powers of logic with 200 number puzzles from The Times   Just like a mathematical crossword, these puzzles are ideal for fans of Su Doku who relish grappling with figures. Contains four levels of difficulty, combining arithmetic with an intersecting layout: Mild, Medium, Tricky and Tough. Kakuro originated in the United States in the 1950s under the name of Cross Sums. A logic puzzle, the aim is to complete a grid using digits from 1 to 9, with the digits in each row\/column adding up to the clue for that block. It's similar to Su Doku in the sense that digits cannot be repeated in a row\/column. Also known as: Croco Puzzle, Cross Sums, CrossSam, Kasan Kurosu, Kreuzsummenratsel,Tashizan Cross, Zahlenschwede Are you up to the challenge?","brand":"Book Grocer","offers":[{"title":"Default Title","offer_id":49223404093659,"sku":"9780008749095-RETAIL","price":14.44,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/7646\/9701\/files\/24573acd-5e08-4baa-aedc-cd735b92f955.jpg?v=1788529008","url":"https:\/\/bookgrocer.com\/products\/9780008749095-retail-the-times-kakuro-book-2-200-mathematical-logic-puzzles-the-times","provider":"Book Grocer","version":"1.0","type":"link"}