Killer Sudoku Books for Adults - 500 Hard to Extreme Killer Sudoku Puzzles for Experts: The Ultimate Collection of 250 Hard and 250 Very Hard Killer Sudoku Puzzles
| Country | USA |
| Manufacturer | Heinemann Secondary Education |
| Binding | Paperback |
| UnitCount | 1 |
| EANs | 9780435375942 |
| ReleaseDate | 0000-00-00 |