| title | ISBN-13 | year of publication |
|---|---|---|
| Save The Tigers Sudoku: 100 Moderate Puzzles | 978-0-9818402-1-5 | 2008 |
| Save The Tigers Sudoku: 100 Novice Puzzles | 978-0-9818402-0-8 | 2008 |
| Save The Tigers Sudoku: 100 Puzzles Just For Kids | 978-0-9818402-3-9 | 2008 |
| Save The Tigers Sudoku: 100 Wicked Puzzles | 978-0-9818402-2-2 | 2008 |