Guides
Sudoku rules, strategies and tips, from your first puzzle to Expert.
- How to play sudoku: the rules and how to solve your first puzzle
The three sudoku rules in plain words, how to find your first digits, when to use notes, and what to do when you get stuck. No maths needed.
- Sudoku strategies for beginners: 6 techniques that solve most puzzles
Six sudoku techniques in the order you'll need them, from hidden singles to pointing pairs, each with a simple example. Enough to solve Easy to Hard puzzles.
- How to use notes (pencil marks) in sudoku
When to start writing notes in a sudoku, the two ways to write them, how to keep them correct, and the patterns that notes help you find.
- Sudoku difficulty levels explained: Easy, Medium, Hard and Expert
What really makes a sudoku easy or hard, why the number of given digits isn't the whole story, and how Sudofold's four levels are built.
