Free Sudoku Online: Play in Your Browser

Yes, you can play sudoku for free on The Games Nook. The puzzles run in your web browser, so there is nothing to download or install, and they work on both phones and computers.

The game is the same classic grid you may already know. You fill a nine by nine board so that every row, every column and every outlined three by three box contains the digits 1 to 9 exactly once. Each puzzle starts with some numbers already in place, and your job is to find the rest by logic.

What you get for free

Everything on the sudoku page is free to use. There is no account to create and no trial to cancel.

• Four difficulty levels, from gentle to expert
• A daily puzzle that is the same for everybody on the same day
• Printable sheets for pen-and-paper solving
• Large print versions for easier reading

How to start a puzzle

1. Open the sudoku page and choose a level you feel comfortable with.
2. Click or tap an empty square to select it.
3. Type a digit from 1 to 9. If you make a mistake, erase it and try again.
4. Work through the grid slowly, checking each row, column and box as you go.

You do not need to finish quickly. Taking a break and coming back with fresh eyes often helps more than pushing on.

Choosing a level

If you are new to sudoku, begin with the easiest level. It gives you plenty of clues and lets you learn the pattern of the game.

• Easy: good for learning how rows, columns and boxes interact
• Medium: needs a little more scanning and some patient checking
• Hard: asks you to combine several ideas at once
• Expert: long chains of reasoning, best saved for a calm evening

You can always move up when the easier puzzles start to feel too simple.

Tips that work on any puzzle

1. Start with the number that appears most often in the grid. It is usually easier to place the rest around it.
2. Look for a square where only one digit can fit. Write small pencil notes in the corners of empty squares if that helps you see the options.
3. Scan each box for a digit that is missing and check whether only one empty square can hold it.
4. When you are stuck, look at a row or column that already has many numbers. The last few gaps often fill in quickly.
5. Avoid guessing too early. A guess that turns out wrong can cost you more time than a short pause to look again.

If you prefer paper, the printable sudoku page lets you print one, two, four or six puzzles to a sheet, and each sheet includes solutions so you can check your work. People who like a bigger grid can use the large print sheets instead.

Printable sudoku and large print

Some people like to solve on paper, away from the screen. The printable sheets are free to print at home, and you can choose how many puzzles appear on each page. Solutions are included at the back, so you can compare your answers whenever you like.

The large print version uses bigger numbers and more space between the squares, which many readers find easier on the eyes. It is a good choice for longer sessions or for anyone who wants a calmer, less crowded page.

Come back to the daily puzzle

The daily sudoku is a single puzzle that changes each day and is the same for every visitor. It is a pleasant habit to pick up with your morning drink, and it gives you a fresh challenge without any pressure to keep a streak.

When you want more practice, the expert level is there for you, and the daily puzzle is a simple way to keep your skills warm between longer sessions. Whatever you choose, you can start right now without signing up for anything.