New York Post Train Your Brain Su Doku: Difficult: The Official Puzzle Collection to Improve Concentration and Engage Your Mind
| Country | USA |
| Brand | First Second |
| Manufacturer | First Second |
| Binding | Paperback |
| ItemPartNumber | Illustrated |
| ReleaseDate | 2018-03-06 |
| UnitCount | 1 |
| EANs | 9781626728691 |