New York Post Train Your Brain Su Doku: Difficult: The Official Puzzle Collection to Improve Concentration and Engage Your Mind
| Country | USA |
| Brand | Simon & Schuster |
| Manufacturer | Simon & Schuster |
| Binding | Hardcover |
| ItemPartNumber | DYLA950 |
| ReleaseDate | 2004-10-05 |
| UnitCount | 1 |
| EANs | 9780743228152 |