Game guide · 020GAY8
Read before your next round of Calcudoku
Bring your attention to one round of Calcudoku. Fill a 4×4 Latin square and satisfy every cage arithmetic target. Look at what changes after your first action. Choose a comfortable screen position before beginning. Keep the game area visible while you use its controls.
Twelve puzzles with addition, multiplication, subtraction and singleton cages.
One thing to notice as you play
Read one step at a time and try it on the playing area. Match the instruction to the control you use. Keep the objective visible.
Aim for this result
Fill a 4×4 Latin square and satisfy every cage arithmetic target. Read that aim before choosing your first action. The example below illustrates a decision.
How a round unfolds
- Select a square and enter 1–4.
- Combine all cage digits using its shown operation.
- Subtraction uses the absolute difference.
- Check puzzle verifies the entire grid.
Keyboard and screen controls
Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution. Keep the playing area visible while using these controls. Look at the feedback after the action.
Follow the example
A two-cell 6× cage contains 2 and 3 in a 1–4 puzzle. Apply the same reasoning to the position in your own round. Notice the change in the playing area.
A mistake to avoid
A correct cage total does not permit duplicate digits in a row. A different version of the game may use a different rule. Watch the feedback after an action. A message can explain whether the input was accepted or whether a rule needs attention.
Common questions
While learning, what is the goal of Calcudoku?
Fill a 4×4 Latin square and satisfy every cage arithmetic target.
Before I begin, how do I control Calcudoku?
The key detail is this: Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution.
For my first round, what example helps explain Calcudoku?
The key detail is this: A two-cell 6× cage contains 2 and 3 in a 1–4 puzzle.
While reading the Guide, what should I watch out for in Calcudoku?
For clarity: A correct cage total does not permit duplicate digits in a row.
Before I begin, what format does Calcudoku offer?
The key detail is this: Twelve puzzles with addition, multiplication, subtraction and singleton cages.
For my first round, which play mode does Calcudoku use?
For clarity: The mode on this page is Solo. Same-device play uses one screen; this game library does not provide internet matchmaking.
When I return, where should I start with Calcudoku?
Here is the relevant explanation: Select a square and enter 1–4.
When I return, do I need an account or a payment for Calcudoku?
Keep this in mind: No player account or payment is needed. Game scores are recreational results, not cash prizes.
How can I find Calcudoku 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.
On this playing page, how do I report an issue with Calcudoku?
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.
