Creator of puzzles - Calcudoku 240 Hard Puzzles 7x7 (Volume 3) (Paperback) (ISBN-13: 9781544999135)

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
ISBN-10: 1544999135
ISBN-13: 9781544999135
Publisher: Createspace Independent Publishing Platform
Language: English
Published: 03/28/2017
Pages: 62
Format: Paperback
Weight: 0.21lbs
Size: 9.00h x 6.00w x 0.13d