{"product_id":"mensa-s-most-difficult-maths-tests-prove-your-arithmetic-pro-9781787394292b","title":"Mensa's Most Difficult Maths Tests: Prove Your Arithmetic Prowess by Solving the Toughest Numerical Puzzles","description":"\u003cspan style=\"font-weight: bold;\"\u003e\u003cspan style=\"font-style: italic;\"\u003eMensa's Most Difficult Maths Tests\u003c\/span\u003e provides an exceptional challenge for even the most adept of puzzlers.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003eThis full-colour book features a huge variety of numerical brainteasers that will test even the most mathematical of minds. With puzzles ranging from the familiar – such as kakuro and killer sudoku - to the exotic – such as sum skyscraper and calcudoku – this fiendish puzzle book will keep you entertained for hours. Are you up to the challenge?","brand":"Welbeck Publishing","offers":[{"title":"Bargain","offer_id":42823410516048,"sku":"9781787394292B","price":6.49,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8173\/5760\/files\/9781787394292-l.jpg?v=1785892117","url":"https:\/\/bookoutlet.com\/products\/mensa-s-most-difficult-maths-tests-prove-your-arithmetic-pro-9781787394292b","provider":"Book Outlet","version":"1.0","type":"link"}