Happy Horse Sudoku 1,200 Extra Hard Puzzles
Subtitle: No Wasted Puzzles With Only One Level Of Difficulty
Publisher: Createspace Independent Publishing Platform; CreateSpace Independent Publishing Platform
Published: Oct 20, 2016
Format: paperback
Number of pages: 406
ISBN-13: 9781539631521
Notes: Source title: Happy Horse Sudoku 1,200 Extra Hard Puzzles: No Wasted Puzzles With Only One Level Of Difficulty