Sudoku 1,000 Puzzles, 500 Hard and 500 Extra Hard: Keep Your Brain Active For Hours With This Sudoku Puzzle Book (Active Brain Series 2)
| Country | USA |
| Brand | HFETDP |
| Manufacturer | HFETDP |
| ItemPartNumber | HFETDP |
| Model | HFETDP |
| Color | Black |
| Size | One Size |
| UnitCount | 1 |
| UPCs | 705676965959 |
| EANs | 0705676965959 |
| ReleaseDate | 0000-00-00 |