# Turn on the Logic Calcudoku 200 Easy Puzzles 9x9 (Volume 3) - heftet, Engelsk, 2018

### Beskrivelse

Calcudoku (also known as "Mathdoku") 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 (