{"product_id":"calcudoku-mixed-grids-hard-volume-4-276-puzzles-paperback","title":"CalcuDoku Mixed Grids - Hard - Volume 4 - 276 Puzzles - Paperback","description":"\u003cp\u003eby \u003cb\u003eNick Snels\u003c\/b\u003e (Author)\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003eCalcuDoku is a fun and addicting logic puzzle game that combines Sudoku with math. CalcuDoku is a fun way for kids and adults to practice addition, subtraction, multiplication, and division facts. This book is ideal for you if you love to solve difficult CalcuDoku puzzles no matter their size. You do not need to wade through tons of easy CalcuDoku puzzles before getting to the real brain teasers. You will experience extremely hard CalcuDoku 7x7, CalcuDoku 8x8 and CalcuDoku 9x9. You get the perfect mix of different sizes of CalcuDoku to keep you entertained for weeks. Once you pick up this book, you won't be able to put it back down. You have been warned \u003c\/p\u003e \u003cp\u003eCalcuDoku Mixed Grids - Hard is a collection of 276 puzzles: \u003c\/p\u003e \u003cul\u003e \u003cli\u003e72 hard CalcuDoku 7x7 puzzles\u003c\/li\u003e \u003cli\u003e72 hard CalcuDoku 8x8 puzzles\u003c\/li\u003e \u003cli\u003e72 hard CalcuDoku 9x9 puzzles\u003c\/li\u003e \u003cli\u003e60 extra logic puzzles\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eI guarantee that every logic puzzle in this CalcuDoku puzzle book has been carefully checked to ensure that each puzzle has only 1 solution.\u003c\/p\u003e \u003cp\u003eNone of the puzzles in this book will appear in any of the other PuzzleBooks.net books.\u003c\/p\u003e \u003cp\u003eCalcuDoku is also known as Square Wisdom, CanCan, MinuPlu, Mathdoku and Calcu-Doku.\u003c\/p\u003e\u003cdiv\u003e\n\u003cstrong\u003eNumber of Pages:\u003c\/strong\u003e 182\u003c\/div\u003e\u003cdiv\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 0.39 x 9 x 6 IN\u003c\/div\u003e\u003cdiv\u003e\n\u003cstrong\u003ePublication Date:\u003c\/strong\u003e October 11, 2014\u003c\/div\u003e","brand":"Books by splitShops","offers":[{"title":"Default Title","offer_id":42116889378951,"sku":"9781502800039","price":13.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0601\/2623\/2711\/files\/c8497326b98b56d8d05d5a049fb4aab5.webp?v=1732519587","url":"https:\/\/booksby.splitshops.com\/products\/calcudoku-mixed-grids-hard-volume-4-276-puzzles-paperback","provider":"Books by splitShops","version":"1.0","type":"link"}