New York Post Train Your Brain Su Doku: Difficult: The Official Puzzle Collection to Improve Concentration and Engage Your Mind
| Country | USA |
| Manufacturer | 1 Plus Books |
| Binding | Paperback |
| ItemPartNumber | Refer to Sapnet. |
| UnitCount | 1 |
| EANs | 9781949736908 |
| ReleaseDate | 0000-00-00 |