JPEN
Classic Sudoku, at your own pace

Relaxing Sudoku

Play as much as you like, at any difficulty

What kind of Sudoku is this?

A classic puzzle at your own pace

The rules are the same as classic Sudoku: fill each row, column, and outlined block without repeating a number.
Instead of a fixed puzzle collection, you can freely create a puzzle by choosing its grid size and difficulty.

Relaxing Sudoku does not judge entries until you choose to check your answer, so it keeps some of the feel of solving on paper. The timer is optional: there is no need to compete for time or score.

Choose how you play

  • Choose a 4×4, 6×6, or 9×9 grid.
  • 9×9 has five levels from Easy to Master; 4×4 and 6×6 have two beginner-friendly levels.
  • Use notes for candidate numbers, continuous entry for a number, undo and redo, and the optional timer.

Create puzzles as often as you like

Puzzles are created in this browser and checked to ensure that each one has a unique solution. The same Sudoku ID recreates the same puzzle on another device.

Saving and privacy

Your play data is never sent to a server or stored in a database. Saved puzzles, answers in progress, notes, history, and clear counts stay only in this browser’s storage.

Browser data deletion also removes these records, so keep the Sudoku ID or share URL for any puzzle you want to revisit.

PUZZLE SETUP

Create a New Puzzle

Simply choose a size, difficulty, and whether to use a timer to create a puzzle.
Grid size
Difficulty
Timer

You can switch the timer on or off after creating a puzzle.

Open a puzzle with its Sudoku ID

Enter a Sudoku ID to open the same puzzle.

Choose a size and difficulty, then create a puzzle.
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