CalcuDoku Puzzles - 400 Hard Puzzles 6x6 vol.7

Each puzzle consists of a grid containing blocks surrounded by bold lines. The object is to fill all empty squares so that the numbers 1 to N (where N is the number of rows or columns in the grid) appear exactly once in each row and column and the numbers in each block produce the result shown in the top-left corner of the block according to the math operation appearing on the top of the grid. In CalcuDoku a number may be used more than once in the same block.

• • Author: David Smith
• • Publisher: Independently published
• • Publication Date: Nov 16, 2018
• • Number of Pages: 96 pages
• • Language: English
• • Binding: Paperback
• • ISBN-10: 1731425317
• • ISBN-13: 9781731425317