Sudoku Puzzle Book, 500 Extra Hard Puzzles
Subtitle: Single Difficulty Level For No Wasted Puzzles
Publisher: Createspace Independent Publishing Platform; CreateSpace Independent Publishing Platform
Published: Jan 18, 2017
Format: paperback
Number of pages: 172
ISBN-13: 9781542614887
Notes: Source title: Sudoku Puzzle Book, 500 Extra Hard Puzzles: Single Difficulty Level For No Wasted Puzzles (Sudoku Puzzle Books)