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Ultimate Sudoku

Puzzle
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What is Ultimate Sudoku?

Ultimate Sudoku is a free puzzle game with sudoku elements that you can play online in your web browser on Gameziko. It needs no download, no install and no account. A puzzle game from Japan that has conquered the whole world.

How to play Ultimate Sudoku

  1. Press "Play now" on the game screen. Ultimate Sudoku loads inside the player; some games take up to 20 seconds and may show a short ad first.
  2. Fill in the blanks with numbers from 1 to 9.
  3. Each row, column or 3x3 block, must contain the number 1 through 9 exactly once.
  4. Use the full-screen button at the bottom right of the player for a bigger view, and press Esc to leave full screen.

Game details

CategoryPuzzle
Tagssudoku
ControlsShown in the game
ScreenSquare (1920 × 1920)
PriceFree
Download or sign-upNot needed
Distributed byGameDistribution
Added to Gameziko30 September 2026

Description from the developer

A puzzle game from Japan that has conquered the whole world. Fill in the empty cells with numbers from 1 to 9. In each row, column, or 3x3 block, each number can occur only once. 3 different game modes: Cell first: First click on the cell you want to fill in, and then select a number. Number First: first click on the number, and then on the cell in which you want to enter this number. Note Mode: Write down the option in an empty space using the keyboard or the number buttons.

Ultimate Sudoku: frequently asked questions

Is Ultimate Sudoku free to play?

Yes. Ultimate Sudoku is free to play on Gameziko, with no download and no account needed. Like most free web games, it is funded by ads, so it may show a short ad before or between rounds.

What are the controls in Ultimate Sudoku?

The developer's instructions for Ultimate Sudoku say: "Fill in the blanks with numbers from 1 to 9. Each row, column or 3x3 block, must contain the number 1 through 9 exactly once."

Can I play Ultimate Sudoku on a phone or tablet?

Ultimate Sudoku is an HTML5 game, so it opens in modern mobile browsers as well as on a computer. Its controls were designed mainly for a mouse, so a computer usually gives the smoothest experience.

What games are similar to Ultimate Sudoku?

If you like Ultimate Sudoku, try Sudoku Blocks, Classic Nonogram and Master Sudoku. They are puzzle games with similar themes, and you can find more in the Puzzle category on Gameziko.

Good to know

Ultimate Sudoku is made by an independent developer and delivered by GameDistribution, so Gameziko cannot change the game or recover lost progress. Any progress the game saves is kept in your browser on this device. If the game does not start, wait up to 20 seconds, allow ads for gameziko.com and try again, or report the game.

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