How to Play Jigsaw Sudoku

THE PLAYBOOK · 373GS

How to play Jigsaw Sudoku

Try Jigsaw Sudoku at your own pace and keep its objective in view. Fill each row, column and irregular coloured nine-cell region with 1–9 once. Keep the game area visible while you use its controls. Make your first input carefully and watch the result. Look at what changes after your first action.

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.

Try a deliberate move

After a move, check what changed. Decide which rule explains the new state before acting again. Refer to the controls when needed.

Your goal

Fill each row, column and irregular coloured nine-cell region with 1–9 once. An attractive position is not enough unless the goal is met. Notice how the game responds to your input.

Step by step

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.

Controls

Click or tap cells and the digit pad. Use Notes, Undo and Reveal selected. Large boards scroll inside the game. On a smaller screen, keep the active part of the board within view. Look at the feedback after the action.

A useful example

The coloured region, not a conventional 3×3 box, defines the third no-repeat constraint. Compare this with the rule that governs the move. Check the stated objective.

Watch out for this

A full board must obey every extra rule. Reveal supplies assistance; it is not an earned deduction. Compare the situation with the worked example. Choose one rule to keep in mind for this round. Apply it consistently rather than guessing what another version might allow.

Common questions