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How to get better at sudoku
Sudoku never needs guessing. Every proper puzzle can be solved by logic, and getting better is mostly about learning a handful of patterns and spotting them faster. Once you see them, harder grids stop feeling like luck.
A learning path, then sudoku apps.
Start with scanning
For each number, look across rows, columns and boxes to find where it can only go in one place. Then look for cells where only one number fits.
Use pencil marks
When scanning runs out, write the possible numbers in each cell. Apps can fill and update candidates for you, which lets you focus on patterns.
Learn a few patterns
Naked and hidden pairs, and pointing pairs inside a box, remove candidates and unlock harder grids. Learn one pattern at a time and practise it.
Raise the level gradually
Move up a difficulty once the current one feels routine, and use hints only to learn which pattern you missed. For other logic games, see block puzzle games; compare apps in sudoku apps.
| Step | What you do | Why |
|---|---|---|
| 1. Scan for singles | one place or one number left | the easy wins |
| 2. Pencil marks | note candidates in cells | see the options |
| 3. Learn pairs | two cells, two numbers | removes candidates |
| 4. Step up slowly | one difficulty at a time | patterns stick |
| 5. Review the stuck point | where did you stall | learn the next pattern |
Frequently asked questions
How do I get better at sudoku?
Scan for singles, use pencil marks, learn patterns such as pairs one at a time and step up difficulty gradually.
Do you ever need to guess in sudoku?
Not in a properly made puzzle; each has a unique solution reachable by logic.
What are pencil marks in sudoku?
Small notes of the possible numbers for each cell.