Game guide · JZJSBYY
Killer Sudoku: how a round works
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. Choose a clear next step rather than rushing through the instructions. Begin with the solo mode shown on the page. Choose a clear next step rather than rushing through the instructions.
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.
Try a more deliberate round
Compare the worked example with your own position. Use the reasoning, not an answer copied from a different board. Use the example to check your reasoning.
What you are aiming for
Fill rows, columns and boxes with 1–9 once. Cage digits cannot repeat and must add to their clue. An attractive position is not enough unless the goal is met. Take a moment to understand the current position.
The playing sequence
- 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.
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. Keep the playing area visible while using these controls. Read the example below alongside these instructions.
Follow the example
A two-cell cage labelled 3 holds 1 and 2; a one-cell cage fixes its own value. Use the example as a guide rather than a substitute for reading your board. Choose a deliberate next step.
Keep this in mind
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. Before your first action, say what you are trying to achieve. Then compare the result with the goal.
If you are unsure
For this browser game, what is the goal of Killer Sudoku?
Here is the relevant explanation: Fill rows, columns and boxes with 1–9 once. Cage digits cannot repeat and must add to their clue.
As a new player, 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.
What example helps explain Killer Sudoku?
The key detail is this: A two-cell cage labelled 3 holds 1 and 2; a one-cell cage fixes its own value.
As a new player, 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.
As a new player, which play mode does Killer 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.
On this playing page, where should I start with Killer Sudoku?
Here is the relevant explanation: Select an editable cell.
Before I begin, do I need an account or a payment for Killer Sudoku?
The key detail is this: No player account or payment is needed. Game scores are recreational results, not cash prizes.
For my first round, how can I find Killer Sudoku again?
The key detail is this: Use the Games list or save this game page in your browser bookmarks. The Guide is linked from the playing page.
How do I report an issue with Killer Sudoku?
Keep this in mind: 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.