Grandpa's Birthday Sudoku Challenge: Can Grandpa do 50 hard puzzles in 50 days? Hmm...
| Country | USA |
| Manufacturer | Claret Press |
| Binding | Paperback |
| PartNumber | 9781910461761 |
| Height | 8 |
| Length | 5.25 |
| Weight | 0.59083886216 |
| Width | 0.58 |
| NumberOfItems | 1 |
| ReleaseDate | 0000-00-00 |