New York Post Train Your Brain Su Doku: Difficult: The Official Puzzle Collection to Improve Concentration and Engage Your Mind
| Country | USA |
| Brand | Red Deer Press |
| Manufacturer | Red Deer Press |
| Binding | Paperback |
| ReleaseDate | 2021-10-27 |
| UnitCount | 1 |
| EANs | 9780889956407 |