The Big Book of Logic Puzzles - Numbricks 400 Hard (Volume 6)
| Country | USA |
| Brand | C Hurst & Co Publishers Ltd |
| Manufacturer | C Hurst & Co Publishers Ltd |
| Binding | Paperback |
| Height | 7.67715 |
| Length | 12.75588 |
| Weight | 0.8598028218 |
| Width | 0.94488 |
| ReleaseDate | 0000-00-00 |