Sudoku, the popular number puzzle, has evolved significantly over the years. From classic 9×9 grids to innovative and challenging variations, there is a type of Sudoku for everyone. If you’re a Sudoku enthusiast or just starting out, here are the top types of Sudoku you need to try.
Classic Sudoku
The most well-known version, Classic Sudoku, features a 9×9 grid divided into nine 3×3 subgrids. The objective is simple: fill the grid so that each row, column, and subgrid contains the numbers 1 through 9 without repetition. It’s the perfect starting point for beginners.
Diagonal Sudoku
Also known as “X-Sudoku,” this variation includes an additional constraint. Besides the standard rules, both main diagonals must also contain unique numbers from 1 to 9. This added twist makes the puzzle more challenging and engaging.
Hyper Sudoku
Hyper Sudoku, or “Window Sudoku,” extends the classic grid with four additional shaded 3×3 regions. These shaded areas must also contain unique numbers from 1 to 9. The extra constraints make this puzzle a delightful challenge.
Jigsaw Sudoku
Jigsaw Sudoku, also called “Irregular Sudoku,” breaks away from the standard 3×3 subgrid format. Instead, it uses irregularly shaped regions. The goal remains the same, but the irregular shapes add a refreshing twist to the traditional gameplay.
Killer Sudoku
Killer Sudoku combines elements of Sudoku and Kakuro. In addition to filling the grid according to standard Sudoku rules, you must also ensure that the numbers in the outlined cages add up to a specified sum. No number can be repeated within a cage, adding another layer of complexity.
| Type of Sudoku | Key Feature |
|---|---|
| Classic Sudoku | 9×9 grid with standard rules |
| Diagonal Sudoku | Unique numbers on main diagonals |
| Hyper Sudoku | Additional shaded 3×3 regions |
| Jigsaw Sudoku | Irregularly shaped regions |
| Killer Sudoku | Sum constraints in outlined cages |
Samurai Sudoku
Samurai Sudoku is the ultimate test for avid puzzlers. It features five overlapping 9×9 grids, where the central grid shares blocks with the peripheral ones. Solving this puzzle requires advanced strategies and a lot of patience.
Mini Sudoku
For those who prefer simpler puzzles, Mini Sudoku offers a smaller grid size, usually 4×4 or 6×6. Despite the smaller grid, the objective remains the same: fill each row, column, and subgrid with unique numbers. It’s perfect for quick brain workouts.
- Classic Sudoku
- Diagonal Sudoku
- Hyper Sudoku
- Jigsaw Sudoku
- Killer Sudoku
- Samurai Sudoku
- Mini Sudoku
If you’ve only tried Classic Sudoku, it’s time to explore these fascinating variations. Each type offers a unique set of challenges that will test and improve your puzzle-solving skills.