Game guide · 371HOTEL
Calcudoku: how a round works
Try Calcudoku at your own pace and keep its objective in view. 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. Keep the game area visible while you use its controls.
Twelve puzzles with addition, multiplication, subtraction and singleton cages.
Practice with a purpose
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.
What counts as success
Fill a 4×4 Latin square and satisfy every cage arithmetic target. The feedback beside the game helps you follow the round. Keep the controls in easy reach.
Follow these playing steps
- 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.
How to use the controls
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. A new-round button replaces the current round.
See how the rules apply
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 controls nearby.
Notice this detail
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. Take enough time to read a new position. If a game has a timer, learn its controls first rather than searching for them during the round.
Answers about the rules and controls
While reading the Guide, what is the goal of Calcudoku?
For clarity: Fill a 4×4 Latin square and satisfy every cage arithmetic target.
While learning, 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.
What example helps explain Calcudoku?
Here is the relevant explanation: A two-cell 6× cage contains 2 and 3 in a 1–4 puzzle.
For a quick reminder, what should I watch out for in Calcudoku?
A correct cage total does not permit duplicate digits in a row.
While reading the Guide, what format does Calcudoku offer?
Keep this in mind: Twelve puzzles with addition, multiplication, subtraction and singleton cages.
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.
Before I begin, where should I start with Calcudoku?
Select a square and enter 1–4.
For this browser game, 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.
For this browser game, 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.
On this playing page, how do I report an issue with Calcudoku?
For clarity: 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.