How to get better at sudoku
Whether you want to solve harder puzzles, improve your speed, or simply make fewer mistakes – becoming better at Sudoku takes more than practice alone. Understanding what to practice — and how — can make all the difference.
Getting better at Sudoku can mean different things. You might want to solve harder puzzles, finish familiar ones faster, or make fewer mistakes. Each goal calls for a slightly different kind of practice.
Solving more puzzles helps, but improvement is easier when you know what you’re working on. The key is to challenge yourself in the right way, rather than treating every Sudoku as a race against the clock.
What does it mean to be good at Sudoku?
There isn’t one measure of Sudoku skill. Some players solve easy puzzles remarkably quickly, while others patiently work through difficult puzzles that require advanced logic. Neither achievement tells the whole story.
- Difficulty: How challenging a puzzle can you solve without guessing or relying on help?
- Speed: How efficiently can you recognize patterns and find the next logical move?
- Accuracy: How reliably can you finish without placing incorrect numbers?
These abilities overlap, but they don’t develop at the same rate. Learning a new technique may help you solve harder puzzles without making you faster. Practicing familiar puzzles may improve your times without teaching you anything new.
Improve your Sudoku skills
Learn to solve harder puzzles
To tackle more difficult Sudokus, you need a broader range of logical techniques. Easy puzzles often yield to scanning rows, columns and 3×3 boxes. Harder puzzles may require you to examine several cells together and eliminate candidates before you can place another number.
Learn one technique at a time
Begin with Naked Singles and Hidden Singles, then move on to patterns such as Naked Pairs, Hidden Pairs and Pointing Pairs. Techniques such as X-Wing can come later. Understanding the explanation is only the first step; the real skill is recognizing when the technique applies to a puzzle in front of you.
Practice one new technique on several puzzles before moving on. Don’t worry if it takes time to spot the pattern. Recognition becomes easier with experience.
Choose a useful level of difficulty
If you solve every puzzle without hesitation, try a harder level. If you repeatedly need help to make progress, spend more time with the techniques required at your current level. The best challenge is one that stretches your skills while still allowing you to learn from your own reasoning.
Get faster at Sudoku
Speed is largely a matter of recognizing familiar patterns and avoiding wasted effort. Experienced players often notice possibilities almost immediately because they’ve encountered similar arrangements many times before.
Follow a routine
Instead of jumping randomly between cells, start with nearly complete rows, columns and boxes. Look for obvious placements, then scan for digits with only one possible position. When simple moves run out, examine candidates and more complex patterns. A consistent routine reduces the time spent checking the same areas again and again.
Practice speed on familiar puzzles
Choose puzzles you can already solve accurately and track your completion times over several attempts. Look for moments when you hesitate or repeat a check unnecessarily. Aim for smoother solving rather than rushing each decision.
As the routine becomes more natural, your speed should improve. A fast but incorrect solution isn’t progress; accuracy still matters.
Make fewer mistakes
One wrong digit can lead to a chain of incorrect deductions. Before placing a number, make sure you can explain why it must belong in that cell. If you regularly make mistakes, slow down and check your reasoning. This can improve your average completion time by reducing the need to undo work.
Guessing may sometimes seem faster, but it doesn’t strengthen the logical skills that help you solve future puzzles.
Practice more effectively
Use notes to see more
Notes, also called candidates or pencil marks, show which digits are still possible in empty cells. They are especially useful when the next number isn’t obvious. By recording candidates, you can see relationships between cells that would be difficult to keep in your head.
However, filling in notes too early can slow you down, especially when a puzzle has many empty cells. Look for obvious placements first, then use notes when the simpler moves run out.
Manual notes encourage careful checking of rows, columns and boxes. Automatic notes can save time when you want to focus on spotting logical patterns. Both approaches have a place, depending on what you’re practicing.
Learn from the puzzles that stop you
Getting stuck is useful if you take the time to understand why. First, look again for simple moves and check that your candidates are up to date. If nothing appears, ask which kind of pattern you might be missing.
When you use an explanation or a step-by-step reveal, study the reasoning rather than just copying the next number. Was it a technique you didn’t know, or one you knew but failed to recognize? That distinction tells you what to practice next.
One carefully understood move can teach you more than several easy puzzles completed on autopilot.
Why more puzzles aren’t always better practice
Imagine two players. One solves several easy puzzles every day and becomes very quick at finding singles. The other solves fewer puzzles but deliberately studies unfamiliar patterns whenever a harder board brings progress to a halt.
After a few weeks, the first player may be faster at easy puzzles while the second can solve more difficult ones. Both have improved, but in different ways. You tend to improve at what you actually practice: speed requires efficient repetition, while greater solving ability requires new logical challenges.
Track your progress
A personal record is satisfying, but a single time doesn’t tell you everything. Two puzzles at the same difficulty can still feel different, and taking longer on a harder puzzle may be a sign of progress rather than a setback.
Look at your results over time: completion times at the same difficulty, the hardest level you can finish independently, how often you need assistance, and how consistently you avoid mistakes. Together, these give a clearer picture of your development.
Four weeks to better Sudoku
Try 15–20 minutes of focused practice on most days. Adjust the difficulty to your current level; the purpose is to build skills, not to finish a fixed number of puzzles.
Build a routine
Choose comfortable puzzles. Scan systematically, explain each placement to yourself, and aim to finish without errors. Don’t worry about speed yet.
Work on speed
Stay at a familiar difficulty. Track several solving times, notice where you hesitate, and make your scanning routine more efficient.
Learn a new technique
Pick one pattern you don’t yet recognize confidently. Study a few examples, then look for it in real puzzles. Ignore the clock.
Try harder puzzles
Move up a level. Apply your new technique, investigate where you get stuck, and study any step you couldn’t find on your own.
Practice with MarApp Sudoku
MarApp Sudoku lets you practice different skills in different ways. Novice puzzles are useful for building confidence and speed, while Advanced and Expert provide more demanding logical challenges. Manual notes help you understand candidates; Premium Auto-notes can free up time to concentrate on patterns.
If you’re stuck, the Premium Surrender feature explains the solution step by step. Best Scores lets you follow your times by difficulty, and the Premium Sudoku Library lets you save interesting boards to revisit – for example a board that requires a certain technique you want to practise. Choose the tools that support the skill you’re trying to develop.
Progress isn’t always steady. Sometimes your times improve before you learn anything new; sometimes a difficult technique takes several sessions to understand. Both are part of becoming a better solver.
If you want to get faster, practice familiar patterns efficiently. If you want to solve harder puzzles, learn new techniques and study the moves you miss.
But remember that Sudoku doesn’t always have to be about improving. Sometimes, the greatest reward is simply losing yourself in a puzzle for a while, leaving the distractions of everyday life behind. And whatever your goal, keep accuracy and enjoyment at the center of the game.