Sudoku for Valentine's Day : 99 of the Most Difficult Sudoku Puzzles in the World
Subtitle: Level Hard Sudoku Puzzle Book. 99 Puzzles. Solve All Do It. 6x9, 100 Pages! Perfect for a Gift and Free Tima at Home, Work, School
Publisher: Independently Published
Published: 2019
Language: eng
ISBN-13: 9781677252886