- 1000 Extremely Hard Sudoku Puzzles for True Professionals: Logic Puzzles | incl. Solutions | Classic Sudoku | Perfect as a Gift for Grandma and Grandpa
- 150 Medium 16x16 Sudoku Puzzles for Smart Minds: Great Gift for Adults, Grandparents or Seniors | Sudoku Booklet incl. Solutions
- 150 Medium 16x16 Sudoku Puzzles for Smart Fellows: Perfect as a Gift for Grandma and Grandpa | Puzzle Book incl. Solutions
- 150 Extreme Samurai Sudoku Puzzles for True Professionals: Sudoku Book | incl. Solutions | Perfect as a Birthday Present
- 1000 Mixed Sudoku Puzzles for Smart Minds: Perfect as a Birthday Present | Puzzle Book with Solutions | 9x9






























