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 |
| Brand | Penguin |
| Manufacturer | HP Books |
| Binding | Paperback |
| ItemPartNumber | 9780912656892 |
| Color | Navy |
| ReleaseDate | 1987-01-01 |
| UnitCount | 1 |
| UPCs | 075478568918 |
| EANs | 9780912656892 |