Skip to content
CXCWGS

Solo · FREE PLAY

Calcudoku

Read the rules ↓
Logic & numbers
Choose your controls and enjoy a free round.
No account neededRules & controls →

Game guide · CXCWGS

Calcudoku: rules and examples

Bring your attention to one round of Calcudoku. 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. Keep the game area visible while you use its controls.

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

Give this approach a try

Keep the stated aim separate from side details such as animation or appearance. Progress is measured by the game’s own completion or scoring rules. Keep the objective visible.

The goal to keep in mind

Fill a 4×4 Latin square and satisfy every cage arithmetic target. Read that aim before choosing your first action. Start with a deliberate move.

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.

Choosing and moving on screen

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. Look at the feedback after the action.

An example to follow

A two-cell 6× cage contains 2 and 3 in a 1–4 puzzle. Compare this with the rule that governs the move. Keep the game’s format in mind.

An important reminder

A correct cage total does not permit duplicate digits in a row. Read the feedback to see why an action did not have the expected result. When a decision goes wrong, compare it with the common mistake described below. Start again only when you intend to leave the current round.

Read these answers for extra help

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

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

On this playing page, how do I control Calcudoku?

Here is the relevant explanation: Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution.

On this playing page, what example helps explain Calcudoku?

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

For my first round, what should I watch out for in Calcudoku?

Keep this in mind: 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.

Which play mode does Calcudoku use?

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?

Select a square and enter 1–4.

On this playing page, 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.

As a new player, how can I find Calcudoku again?

Here is the relevant explanation: 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?

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.

Games

Try another game

View all games
Choose a Card Game (opens in a new tab)