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Jigsaw Sudoku: rules and examples

Bring this focus to a round

Choose one rule to keep in mind for this round. Apply it consistently rather than guessing what another version might allow. Make the next step deliberately.

What you need to achieve

Fill each row, column and irregular coloured nine-cell region with 1–9 once. Read that aim before choosing your first action. Check the rules when you are unsure.

The steps to play

  1. Select an editable cell.
  2. Enter a value using the keypad or keyboard; Notes stores candidates.
  3. Read the region, cage, arrow or outside clues alongside the normal constraints.
  4. Check entries verifies the completed board; Undo reverses your last input.
  5. New puzzle selects another included puzzle.

Choosing and moving on screen

Click or tap cells and the digit pad. Use Notes, Undo and Reveal selected. Large boards scroll inside the game. Use the control method described here for this activity. Use the visible help when you are unsure of the next input.

An example before you play

The coloured region, not a conventional 3×3 box, defines the third no-repeat constraint. Your next round may have a different position, so inspect it before acting. Verify the rule before continuing.

An important reminder

A full board must obey every extra rule. Reveal supplies assistance; it is not an earned deduction. Take a moment to reassess the position before continuing. Locate the buttons and input area before beginning a long round. Use the on-screen labels to avoid an accidental restart.

Further help with the game

While reading the Guide, what is the goal of Jigsaw Sudoku?

For clarity: Fill each row, column and irregular coloured nine-cell region with 1–9 once.

For my first round, how do I control Jigsaw Sudoku?

Here is the relevant explanation: Click or tap cells and the digit pad. Use Notes, Undo and Reveal selected. Large boards scroll inside the game.

On this playing page, what example helps explain Jigsaw Sudoku?

Keep this in mind: The coloured region, not a conventional 3×3 box, defines the third no-repeat constraint.

While reading the Guide, what should I watch out for in Jigsaw Sudoku?

Here is the relevant explanation: A full board must obey every extra rule. Reveal supplies assistance; it is not an earned deduction.

While learning, what format does Jigsaw Sudoku offer?

Here is the relevant explanation: This collection contains 6 puzzles. Progress is saved in this browser. The same puzzle can appear again; the collection is not labelled with calibrated difficulty levels.

As a new player, which play mode does Jigsaw Sudoku use?

The mode on this page is Solo. Same-device play uses one screen; this game library does not provide internet matchmaking.

Where should I start with Jigsaw Sudoku?

Keep this in mind: Select an editable cell.

For a quick reminder, do I need an account or a payment for Jigsaw Sudoku?

For clarity: No player account or payment is needed. Game scores are recreational results, not cash prizes.

While learning, how can I find Jigsaw Sudoku again?

Here is the relevant explanation: Use the Games list or save this game page in your browser bookmarks. The Guide is linked from the playing page.

For this browser game, how do I report an issue with Jigsaw Sudoku?

For clarity: Use the contact form and include the game name, browser, device and the actions that led to the issue. Do not send passwords or payment details.