Game guide · SXSS56
The essentials of playing Calcudoku
Choose a round of Calcudoku and settle into its rules. Fill a 4×4 Latin square and satisfy every cage arithmetic target. Check the relevant rule before repeating a move. Choose a comfortable screen position before beginning. Use the example below to understand a decision.
Twelve puzzles with addition, multiplication, subtraction and singleton cages.
Build familiarity through play
Locate the buttons and input area before beginning a long round. Use the on-screen labels to avoid an accidental restart. Make the next step deliberately.
Your objective
Fill a 4×4 Latin square and satisfy every cage arithmetic target. Keep that objective in view throughout the round. Notice how the game responds to your input.
Work through the instructions
- 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.
Input guidance
Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution. Read a button’s label before selecting it. Contact us with the game and device if a control does not respond.
Put the rules into context
A two-cell 6× cage contains 2 and 3 in a 1–4 puzzle. Focus on why the action is allowed, not only its outcome. Consider the next action carefully.
A useful caution
A correct cage total does not permit duplicate digits in a row. Compare the situation with the worked example. Watch the feedback after an action. A message can explain whether the input was accepted or whether a rule needs attention.
Helpful answers for players
While reading the Guide, what is the goal of Calcudoku?
Keep this in mind: Fill a 4×4 Latin square and satisfy every cage arithmetic target.
How do I control Calcudoku?
Keep this in mind: Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution.
For a quick reminder, what example helps explain Calcudoku?
For clarity: A two-cell 6× cage contains 2 and 3 in a 1–4 puzzle.
What should I watch out for in Calcudoku?
A correct cage total does not permit duplicate digits in a row.
What format does Calcudoku offer?
The key detail is this: Twelve puzzles with addition, multiplication, subtraction and singleton cages.
Before I begin, 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.
On this playing page, where should I start with Calcudoku?
Here is the relevant explanation: Select a square and enter 1–4.
As a new player, do I need an account or a payment for Calcudoku?
No player account or payment is needed. Game scores are recreational results, not cash prizes.
On this playing page, how can I find Calcudoku 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.
Before I begin, how do I report an issue with Calcudoku?
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.