Extreme Sudoku: A collection of 200 of the toughest Sudoku puzzles known to man. (With their solutions.)
| Country | USA |
| Manufacturer | DK |
| Binding | Hardcover |
| ItemPartNumber | 9780593963470 |
| Color | Multicolor |
| ReleaseDate | 2025-01-07 |
| UnitCount | 1 |
| Format | Illustrated |
| EANs | 9780593963470 |