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Classic Sudoku
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Classic Sudoku
Easy Sudoku - Free Online Easy Sudoku Puzzles
Easy-level Classic Sudoku is perfect for players who have grasped the basics and want to build confidence. With around 35–40 given numbers, most cells can be solved using Naked Singles and basic elimination. Pencil marks are optional — you can usually solve by direct observation. This is the ideal level to practice before moving on to more challenging puzzles.
Easy
Average Time
5–10 minutes
Recommended Hints
0–1
Given Numbers
35–40
What is Easy Sudoku?
Easy Sudoku is a classic 9×9 number puzzle where each row, column, and 3×3 box must contain digits 1 through 9 exactly once. Easy puzzles strike the perfect balance between challenge and enjoyment, making them ideal for sharpening your logical thinking and pattern recognition skills.
You can play free Easy Sudoku puzzles online right here — no downloads, no sign-up required. Just open the page and start solving. All our puzzles are generated with a single, logical solution path, so you never need to guess.
Whether you're practicing daily or just want a quick brain workout, Easy Sudoku offers a clean, distraction-free interface that works great on both desktop and mobile devices.
Easy Sudoku Rules & How to Play
The rules of Easy Sudoku are the same as all classic Sudoku puzzles: fill every row, column, and 3×3 box with numbers 1 through 9, with no repeats. The difference is in the number of pre-filled clues and the complexity of deductions required.
If you're new to Sudoku or want to brush up on advanced solving techniques, check out our detailed How to Play Sudoku guide. It covers everything from the basic rules to advanced strategies step by step.
Learn How to Play Sudoku →Easy Sudoku Strategies & Key Techniques
Solving Easy Sudoku efficiently requires the right set of techniques. Below are the key strategies most commonly used at this difficulty level. Mastering these will help you solve faster and with more confidence.
1
Naked Single
Look at a cell's row, column, and box. If only one number can fit, that's your answer — no guessing needed.
2
Hidden Single
Pick a number and check each box. If it can only go in one cell within that box, place it there.
3
Pencil Marks
When unsure, note all possible candidates for a cell. As neighboring cells fill, candidates shrink until one remains.
For a complete library of solving techniques — from basic elimination to advanced X-Wing and Swordfish patterns — visit our Sudoku Strategies & Tips page.
Explore All Sudoku Strategies →Easy vs Other Difficulty Levels
Not sure which difficulty is right for you? Here's how Easy compares to other levels. You can always switch difficulty anytime — your game progress is saved automatically.
Frequently Asked Questions about Easy Sudoku
Is Easy difficulty right for me?
If you understand the basic Sudoku rules and can solve Beginner puzzles comfortably, Easy is your next step. It's designed for players who want to reinforce their skills with slightly fewer clues, but still without requiring advanced techniques.
How long does an Easy Sudoku take on average?
Beginners at this level typically take 5–10 minutes. Experienced players often finish within 3–5 minutes. The solve time drops naturally as your pattern recognition improves with practice.
Do Easy puzzles require pencil marks?
Most Easy puzzles can be solved without pencil marks. However, if you find yourself hesitating frequently, try using candidate notes — they're a great habit to build for harder difficulties. About 20% of Easy puzzles may benefit from light note-taking.
How do I advance from Easy to Medium?
When you can consistently solve Easy puzzles in under 5 minutes without hints, you're ready for Medium. Before moving up, practice identifying Hidden Singles — they become much more common at the Medium level and are essential to master.
