THE PLAYBOOK · HHDMY6
Killer Sudoku: what to know before playing
Make Killer Sudoku your next activity in the game library. Fill rows, columns and boxes with 1–9 once. Cage digits cannot repeat and must add to their clue. Look at what changes after your first action. Compare the starting position with the example in the Guide. 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.
Give this approach a try
Read one step at a time and try it on the playing area. Match the instruction to the control you use. Use the example to check your reasoning.
What you need to achieve
Fill rows, columns and boxes with 1–9 once. Cage digits cannot repeat and must add to their clue. Use the instructions to see which actions move you towards it. Take a moment to understand the current position.
Work through the instructions
- 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. Read a button’s label before selecting it. Read the example below alongside these instructions.
One way to understand the rules
A two-cell cage labelled 3 holds 1 and 2; a one-cell cage fixes its own value. Compare this with the rule that governs the move. Keep the game’s format in mind.
A useful caution
A full board must obey every extra rule. Reveal supplies assistance; it is not an earned deduction. Check the rule before repeating the action. Choose one rule to keep in mind for this round. Apply it consistently rather than guessing what another version might allow.
If you are unsure
What is the goal of Killer Sudoku?
For clarity: 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?
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.
While reading the Guide, 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.
While reading the Guide, 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.
As a new player, what format does Killer Sudoku offer?
Keep this in mind: 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 a quick reminder, which play mode does Killer Sudoku use?
The mode on this page is Solo. Same-device play uses one screen; this game library does not provide internet matchmaking.
