THE PLAYBOOK · PLJTSS
How to play Calcudoku
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.
Review a difficult moment
When a decision goes wrong, compare it with the common mistake described below. Start again only when you intend to leave the current round. Use the example to check your reasoning.
Your goal
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.
Step by step
- 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.
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. Return to the rules if the result is unexpected.
A useful example
A two-cell 6× cage contains 2 and 3 in a 1–4 puzzle. Use the example as a guide rather than a substitute for reading your board. Consider the next action carefully.
Watch out for this
A correct cage total does not permit duplicate digits in a row. Check the rule before repeating the action. Locate the buttons and input area before beginning a long round. Use the on-screen labels to avoid an accidental restart.
Common questions
While learning, what is the goal of Calcudoku?
The key detail is this: Fill a 4×4 Latin square and satisfy every cage arithmetic target.
When I return, 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.
On this playing page, what example helps explain Calcudoku?
For clarity: 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?
Keep this in mind: A correct cage total does not permit duplicate digits in a row.
While learning, what format does Calcudoku offer?
For clarity: Twelve puzzles with addition, multiplication, subtraction and singleton cages.
While learning, 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.
