Game guide · DAIXIAOLIE
Follow the steps for Killer Sudoku
Read the aim of Killer Sudoku, then make your first move. Fill rows, columns and boxes with 1–9 once. Cage digits cannot repeat and must add to their clue. Keep the game area visible while you use its controls. Read the objective before making your first input. Look at what changes after your first action.
This collection contains 8 puzzles. Progress is saved in this browser. The same puzzle can appear again; the collection is not labelled with calibrated difficulty levels.
One thing to notice as you play
Locate the buttons and input area before beginning a long round. Use the on-screen labels to avoid an accidental restart. Keep the objective visible.
The purpose of your moves
Fill rows, columns and boxes with 1–9 once. Cage digits cannot repeat and must add to their clue. The feedback beside the game helps you follow the round. Check the rules when you are unsure.
How a round unfolds
- 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.
Keyboard and screen controls
Click or tap cells and the digit pad. Use Notes, Undo and Reveal selected. Large boards scroll inside the game. A careful first action helps you become familiar with the layout. Check any mode label before starting.
An example before you play
A two-cell cage labelled 3 holds 1 and 2; a one-cell cage fixes its own value. Your next round may have a different position, so inspect it before acting. Read the matching step again.
A mistake to avoid
A full board must obey every extra rule. Reveal supplies assistance; it is not an earned deduction. A different version of the game may use a different rule. When a decision goes wrong, compare it with the common mistake described below. Start again only when you intend to leave the current round.
Helpful answers for players
As a new player, what is the goal of Killer Sudoku?
Fill rows, columns and boxes with 1–9 once. Cage digits cannot repeat and must add to their clue.
While reading the Guide, how do I control Killer Sudoku?
The key detail is this: Click or tap cells and the digit pad. Use Notes, Undo and Reveal selected. Large boards scroll inside the game.
Before I begin, what example helps explain Killer Sudoku?
Keep this in mind: A two-cell cage labelled 3 holds 1 and 2; a one-cell cage fixes its own value.
When I return, what should I watch out for in Killer Sudoku?
Here is the relevant explanation: A full board must obey every extra rule. Reveal supplies assistance; it is not an earned deduction.
While reading the Guide, what format does Killer Sudoku offer?
Here is the relevant explanation: This collection contains 8 puzzles. Progress is saved in this browser. The same puzzle can appear again; the collection is not labelled with calibrated difficulty levels.
For this browser game, which play mode does Killer Sudoku use?
For clarity: 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 Killer Sudoku?
Keep this in mind: Select an editable cell.
Do I need an account or a payment for Killer Sudoku?
Keep this in mind: No player account or payment is needed. Game scores are recreational results, not cash prizes.
While learning, how can I find Killer Sudoku again?
Keep this in mind: Use the Games list or save this game page in your browser bookmarks. The Guide is linked from the playing page.
When I return, how do I report an issue with Killer Sudoku?
Here is the relevant explanation: 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.