Sudoku for Beginners
Never solved a Sudoku before? You are in exactly the right place. Sudoku has one simple rule and needs no maths, and most beginners are placing numbers confidently within their first easy grid. This page gives you the shortest path from “what is this?” to finishing a puzzle on your own.
Your first Sudoku, step by step
- Start on Easy — more givens mean you can solve by simple looking, no notes needed.
- Learn the one rule — each row, column and 3×3 box holds 1 to 9 once, with no repeats.
- Find forced cells — pick a digit and look for a box, row or column where it can go in only one empty cell.
- Fill those certain cells first — each one you place often forces the next.
- Keep going until the grid is full — if every row, column and box has 1 to 9 with no repeats, you have solved it.
Is Sudoku hard to learn?
No — the rules take a minute to learn, and the rest is practice. Difficulty comes from the level you choose, not from the rules. Begin on easy, which gives plenty of starting numbers and can be solved just by spotting forced cells. For the full guided walkthrough, see how to play Sudoku.
The two moves every beginner needs
Almost every easy and medium grid is solved with just two ideas:
- The naked single — a cell where only one digit can possibly fit. Write it in.
- The hidden single — a digit that can go in only one cell of a row, column or box, even if that cell looks like it has options.
Learn to ask both “what can this cell be?” and “where can this digit go?”, and you will rarely get stuck on a beginner board.
Beginner mistakes to avoid
- Guessing. A proper Sudoku is always solvable by logic — if you are unsure, keep scanning rather than gambling.
- Ignoring the boxes. Beginners watch rows and columns and forget the 3×3 boxes; keep all three in mind.
- Starting too hard. If you are forced to guess, drop a level. Build confidence on easy, then climb.
When the easy moves get quick, step up and pick up a few tips & strategy.
Sudoku for Beginners: FAQ
How do I start playing Sudoku as a beginner?
Start on an easy grid, learn the single rule (1 to 9 once per row, column and box), and look for cells where only one digit can go. Place those forced cells first; each one tends to open up the next.
Is Sudoku hard for beginners?
Not on easy boards. They have many starting numbers and can be solved by simple scanning, so most people finish their first one quickly. The challenge grows only as you raise the difficulty.
What is the first technique to learn?
The single — both the naked single (a cell with only one possible digit) and the hidden single (a digit with only one possible cell in a unit). These two solve almost every easy and medium puzzle.
Do beginners need pencil marks?
Not on easy grids, where you can usually see the forced cells directly. Pencil marks — noting a cell’s possible digits — become helpful as you move up to harder levels.