THE PLAYBOOK · SHANGHAIJXC
Jigsaw Sudoku: rules and examples
Take a moment with Jigsaw Sudoku before moving to another game. Fill each row, column and irregular coloured nine-cell region with 1–9 once. Keep the game area visible while you use its controls. Treat the first round as a chance to learn the controls. Use the example below to understand a decision.
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.
Practice beyond the first move
Compare the worked example with your own position. Use the reasoning, not an answer copied from a different board. Make the next step deliberately.
The objective of a round
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 order of play
- Select an editable cell.
- Enter a value using the keypad or keyboard; Notes stores candidates.
- Read the region, cage, arrow or outside clues alongside the normal constraints.
- Check entries verifies the completed board; Undo reverses your last input.
- New puzzle selects another included puzzle.
Controls
Click or tap cells and the digit pad. Use Notes, Undo and Reveal selected. Large boards scroll inside the game. Read a button’s label before selecting it. Avoid pressing the same control repeatedly while a move is being processed.
One way to understand the rules
The coloured region, not a conventional 3×3 box, defines the third no-repeat constraint. Apply the same reasoning to the position in your own round. Keep the controls nearby.
Where a round can go wrong
A full board must obey every extra rule. Reveal supplies assistance; it is not an earned deduction. Read the feedback to see why an action did not have the expected result. When a decision goes wrong, compare it with the common mistake described below. Start again only when you intend to leave the current round.
Further help with the game
As a new player, what is the goal of Jigsaw Sudoku?
Keep this in mind: Fill each row, column and irregular coloured nine-cell region with 1–9 once.
How do I control Jigsaw Sudoku?
For clarity: Click or tap cells and the digit pad. Use Notes, Undo and Reveal selected. Large boards scroll inside the game.
What example helps explain Jigsaw Sudoku?
The coloured region, not a conventional 3×3 box, defines the third no-repeat constraint.
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?
Keep this in mind: 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.
While learning, which play mode does Jigsaw Sudoku use?
Here is the relevant explanation: The mode on this page is Solo. Same-device play uses one screen; this game library does not provide internet matchmaking.