THE PLAYBOOK · HRZBANJIA
Learn your way around Calcudoku
Use a short break to learn the rhythm of Calcudoku. Fill a 4×4 Latin square and satisfy every cage arithmetic target. Choose a clear next step rather than rushing through the instructions. Read the objective before making your first input. Look at what changes after your first action.
Twelve puzzles with addition, multiplication, subtraction and singleton cages.
Bring this focus to a round
Compare the worked example with your own position. Use the reasoning, not an answer copied from a different board. Keep the objective visible.
The objective of a round
Fill a 4×4 Latin square and satisfy every cage arithmetic target. Read that aim before choosing your first action. The example below illustrates a decision.
Start here and follow along
- 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. Keep the playing area visible while using these controls. Make sure you are interacting with the game rather than the surrounding page.
See the idea in action
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. Choose a deliberate next step.
A mistake to avoid
A correct cage total does not permit duplicate digits in a row. Check the rule before repeating the action. 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.
A few questions answered
Before I begin, what is the goal of Calcudoku?
The key detail is this: Fill a 4×4 Latin square and satisfy every cage arithmetic target.
While reading the Guide, 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.
When I return, what example helps explain Calcudoku?
Keep this in mind: A two-cell 6× cage contains 2 and 3 in a 1–4 puzzle.
For this browser game, 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.
For this browser game, what format does Calcudoku offer?
Twelve puzzles with addition, multiplication, subtraction and singleton cages.
For this browser game, 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.