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SBBEN

RULES & PRACTICE

How to Play Calcudoku

Play Calcudoku ↗

Game guide · SBBEN

Getting started with Calcudoku

Take a moment with Calcudoku before moving to another game. Fill a 4×4 Latin square and satisfy every cage arithmetic target. Keep the game area visible while you use its controls. 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

After a move, check what changed. Decide which rule explains the new state before acting again. Make the next step deliberately.

Your goal

Fill a 4×4 Latin square and satisfy every cage arithmetic target. An attractive position is not enough unless the goal is met. The example below illustrates a decision.

The order of play

  1. Select a square and enter 1–4.
  2. Combine all cage digits using its shown operation.
  3. Subtraction uses the absolute difference.
  4. Check puzzle verifies the entire grid.

The controls to know

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. Check any mode label before starting.

Work through an example

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. Keep the game’s format in mind.

Watch out for this

A correct cage total does not permit duplicate digits in a row. Compare the situation with the worked example. Read one step at a time and try it on the playing area. Match the instruction to the control you use.

More answers before you play

For my first round, what is the goal of Calcudoku?

Here is the relevant explanation: Fill a 4×4 Latin square and satisfy every cage arithmetic target.

As a new player, how do I control Calcudoku?

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?

Keep this in mind: A two-cell 6× cage contains 2 and 3 in a 1–4 puzzle.

As a new player, what should I watch out for in Calcudoku?

The key detail is this: A correct cage total does not permit duplicate digits in a row.

While learning, what format does Calcudoku offer?

For clarity: Twelve puzzles with addition, multiplication, subtraction and singleton cages.

While learning, which play mode does Calcudoku 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.

For my first round, where should I start with Calcudoku?

Select a square and enter 1–4.

For a quick reminder, do I need an account or a payment for Calcudoku?

The key detail is this: No player account or payment is needed. Game scores are recreational results, not cash prizes.

When I return, 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.

As a new player, how do I report an issue with Calcudoku?

The key detail is this: 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.

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