Hard Halloween Sudoku (Russian Version): (slojnye Sudoku) (Russian Edition)

Hard Halloween Sudoku is a collection of 100 hard sudoku puzzles 9 x 9. This book is a great stress-reliever. It will help you to train your logic and concentration. It will entertain you for hours while challenging your brain. Comfortable large print makes it easy to read and to work on. Happy Halloween!

• • Author: PuzzlesForHealth
• • Publisher: Createspace Independent Publishing Platform
• • Publication Date: Feb 05, 2018
• • Number of Pages: 156 pages
• • Language: Russian
• • Binding: Paperback
• • ISBN-10: 1985100932
• • ISBN-13: 9781985100930