Quick and detailed solutions of ultra sudoku: 500 puzzles for beginner to expert players
| Country | USA |
| Brand | HMKJHL |
| Manufacturer | HMKJHL |
| ItemPartNumber | AFAA86006-686696140789 |
| Model | A86006-686696140789 |
| UnitCount | 1 |
| EANs | 3271004904695 |
| ReleaseDate | 0000-00-00 |