Quick and detailed solutions of ultra sudoku: 500 puzzles for beginner to expert players
| Country | USA |
| Brand | NEWBAILUN |
| Manufacturer | NEWBAILUN |
| ItemPartNumber | PRKA86122-21OSMFVICDLBP |
| Model | A86122-21OSMFVICDLBP |
| UnitCount | 1 |
| EANs | 3181094024060 |
| ReleaseDate | 0000-00-00 |