The Must Have 2016 Sudoku Puzzle Book: 366 puzzle daily sudoku book for the leap year. A challenge for every day of the year. 366 Sudoku Games - 5 levels of difficulty (easy to hard)
| Country | USA |
| Manufacturer | CreateSpace Independent Publishing Platform |
| Binding | Calendar |
| UPCs | 787721891673 |
| EANs | 9781515040774 |
| ReleaseDate | 0000-00-00 |