New York Post Train Your Brain Su Doku: Difficult: The Official Puzzle Collection to Improve Concentration and Engage Your Mind
| Country | USA |
| Brand | St. Martin's Griffin |
| Manufacturer | Griffin |
| Binding | Paperback |
| ItemPartNumber | 9780312569518 |
| ReleaseDate | 2011-05-10 |
| UnitCount | 1 |
| EANs | 9780312569518 |