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CQXINXING

RULES & PRACTICE

How to Play Calcudoku

Play Calcudoku ↗

Game guide · CQXINXING

Calcudoku: from controls to your first round

Take a moment with Calcudoku before moving to another game. 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. Use the example below to understand a decision.

Twelve puzzles with addition, multiplication, subtraction and singleton cages.

Take a closer look while playing

Compare the worked example with your own position. Use the reasoning, not an answer copied from a different board. Notice the feedback after each input.

The goal to keep in mind

Fill a 4×4 Latin square and satisfy every cage arithmetic target. An attractive position is not enough unless the goal is met. Notice how the game responds to your input.

Follow these playing steps

  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.

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. Use the visible help when you are unsure of the next input.

A useful 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. Consider the next action carefully.

Keep this in mind

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.

Clarifying the way this game works

When I return, what is the goal of Calcudoku?

For clarity: Fill a 4×4 Latin square and satisfy every cage arithmetic target.

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 a quick reminder, what example helps explain Calcudoku?

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

Before I begin, 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.

When I return, what format does Calcudoku offer?

The key detail is this: Twelve puzzles with addition, multiplication, subtraction and singleton cages.

For this browser game, which play mode does Calcudoku use?

The key detail is this: 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?

For clarity: Select a square and enter 1–4.

While learning, do I need an account or a payment for Calcudoku?

Here is the relevant explanation: No player account or payment is needed. Game scores are recreational results, not cash prizes.

While reading the Guide, 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?

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.

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