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DIAOYULEQU

RULES & PRACTICE

How to Play Calcudoku

Play Calcudoku ↗

Game guide · DIAOYULEQU

A practical guide to Calcudoku

Open Calcudoku, check the instructions and begin a round. 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. Choose a clear next step rather than rushing through the instructions.

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

Practice beyond the first move

Before your first action, say what you are trying to achieve. Then compare the result with the goal. Keep the objective visible.

The goal to keep in mind

Fill a 4×4 Latin square and satisfy every cage arithmetic target. The feedback beside the game helps you follow the round. Notice how the game responds to your input.

The steps to 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.

Making selections and moves

Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution. Use the control method described here for this activity. Use the visible help when you are unsure of the next input.

A closer look at one 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. Read the matching step again.

A common point of confusion

A correct cage total does not permit duplicate digits in a row. 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.

Read these answers for extra help

While learning, what is the goal of Calcudoku?

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

When I return, 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?

The key detail is this: A two-cell 6× cage contains 2 and 3 in a 1–4 puzzle.

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?

Here is the relevant explanation: 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.

For this browser game, where should I start with Calcudoku?

Here is the relevant explanation: Select a square and enter 1–4.

For this browser game, 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.

For this browser game, 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?

Keep this in mind: 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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