{"product_id":"9781524868116","title":"Pocket Posh Sixy Sudoku Hard : 200 6x6 Puzzles with a Twist by Peter Ritmeester","description":"Sixy sudoku puzzles bring a whole new dimension of logic, making a 6 x 6 possibly even more fun than a 9 x 9 sudoku! There is no plain hard work, just a lot of logic and insight.   Peter Ritmeester, founder and owner of PZZL.com, is the inventor of Hyper Sudoku where four gray regions also contain 1-9.? By applying this idea to 6 x 6 Sudoku, an additional level of logic is created.? Pocket Posh Sixy Sudoku Hard Puzzles?features a foreword, an extensive how-to-play section, 200 medium to hard puzzles, and complete solutions at the back.?? The rules: insert the digits 1-6 just once in each a) row, b) column, c) bold outlined area AND d) in each white and gray rectangle.?\u003cbr\u003eBinding: Paperback \/ softback","brand":"Gardners","offers":[{"title":"Default Title","offer_id":56303009726837,"sku":"9781398213166","price":6.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/7193\/3106\/files\/9781524868116.jpg?v=1762793579","url":"https:\/\/backstory.london\/products\/9781524868116","provider":"Backstory","version":"1.0","type":"link"}