Killer Windoku: 200 Hard 9x9 Killer Extra Region Sudoku

The objective is to fill the grid with numbers from 1 to 9 in a way that the following conditions are met: Each row, column, and nonet contains each number exactly once.The sum of all numbers in a cage must match the small number printed in its corner.No number appears more than once in a cage. (This is the standard rule for killer sudokus, and implies that no cage can include more than 9 cells.)Sudoku may contain additional four regions 3 x 3

• • Author: Sudoku Mania
• • Publisher: Independently published
• • Publication Date: Nov 03, 2019
• • Number of Pages: 120 pages
• • Language: English
• • Binding: Paperback
• • ISBN-10: 1704933536
• • ISBN-13: 9781704933535