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Daily Maths Puzzle
Jeff Heldt
Daily Maths Puzzle
Jeff Heldt
CalcuDoku is a mathematical and logical puzzle loosely similar to sudoku. It was invented by a Japanese mathematics teacher Tetsuya Miyamoto. The objective is to fill the grid in with the digits 1 through N (where N is the number of rows or columns in the grid) such that: 
                    - Each row contains exactly one of each digit. 
                    - Each column contains exactly one of each digit. 
                    - Each bold-outlined group of cells (block) contains digits which achieve the specified result using the specified mathematical operation: addition (+), subtraction (-), multiplication (×), and division (÷). 
                    - Unlike Killer Sudoku, digits may repeat within a block.
                    
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| Media | Books Paperback Book (Book with soft cover and glued back) | 
| Released | August 24, 2018 | 
| ISBN13 | 9781719873918 | 
| Publishers | Independently Published | 
| Pages | 116 | 
| Dimensions | 152 × 229 × 7 mm · 181 g | 
| Language | English | 
 
         Christmas presents can be returned until 31 January
                     Christmas presents can be returned until 31 January
                      
                  
                 
     
         
         
         
         
         
         
         
         
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