500+ Extreme Sudoku Puzzles for Adults, Teens & Seniors: Very Challenging Puzzles with Solutions, Bonus Variants, and Free Extra Puzzles (Classic Sudoku Collection)
| Country | USA |
| Brand | Qiokoith |
| Manufacturer | Qiokoith |
| Binding | Kitchen |
| ItemPartNumber | bdegyk1759 |
| EANs | 8000277367075 |
| ReleaseDate | 0000-00-00 |