| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2007 | 978-0-9721764-1-5 | Cheryl L Kirk · Noriko Senshu | Midnight Sun Sudoku |
| 2006 | 978-0-9721764-2-2 | Cheryl L. Kirk | Big Book of 620 Sudoku Puzzles for the Frustrated Fanatic |
| 2007 | 978-0-9721764-7-7 | Cheryl L Kirk · Noriko Senshu | Killer Sudoku! |
| '' | 978-0-9721764-9-1 | Kathy Sarns · Cheryl L. Kirk | Bearly Solvable Sudokus |