Sudoku Puzzle Book, 1,600 Puzzles - 400 EASY, 400 MEDIUM, 400 HARD and 400 EXTRA HARD: Improve Your Game With This Four Level Book (Sudoku Puzzle Books Champion Series)
| Country | USA |
| Brand | Quintessence Publishing (IL) |
| Manufacturer | Quintessence Pub Co |
| Binding | Paperback |
| ItemPartNumber | BJ009 |
| ReleaseDate | 2010-11-01 |
| UnitCount | 1 |
| EANs | 9784781201535 |