Creator of puzzles - Calcudoku 240 Extreme (Volume 15)

Calcudoku (also known as "Mathdoku") is a mathematical and logical puzzle loosely similar to Sudoku. 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.

• | Author: Veronika Localy, Mykola Krylov
• | Publisher: CreateSpace Independent Publishing Platform
• | Publication Date: Mar 19, 2018
• | Number of Pages: 60 pages
• | Language: English
• | Binding: Paperback
• | ISBN-10: 198663454X
• | ISBN-13: 9781986634540