New York Post Train Your Brain Su Doku: Difficult: The Official Puzzle Collection to Improve Concentration and Engage Your Mind
| Country | USA |
| Brand | Penguin |
| Manufacturer | Penguin Workshop |
| Binding | Paperback |
| ItemPartNumber | 9780448448923 |
| Color | Multicolor |
| ReleaseDate | 2009-01-08 |
| UnitCount | 1 |
| EANs | 9780448448923 |