THE PLAYBOOK · ACSIWANG
How to play Calcudoku
Read the aim of Calcudoku, then make your first move. Fill a 4×4 Latin square and satisfy every cage arithmetic target. Check the relevant rule before repeating a move. Keep the instructions close while learning this activity. Choose a clear next step rather than rushing through the instructions.
Twelve puzzles with addition, multiplication, subtraction and singleton cages.
Make the controls familiar
Locate the buttons and input area before beginning a long round. Use the on-screen labels to avoid an accidental restart. Use the example to check your reasoning.
Your goal
Fill a 4×4 Latin square and satisfy every cage arithmetic target. An attractive position is not enough unless the goal is met. Return to the instructions when a step is unclear.
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. On a smaller screen, keep the active part of the board within view. Look at the feedback after the action.
A useful example
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. Look for the relevant detail.
Watch out for this
A correct cage total does not permit duplicate digits in a row. Take a moment to reassess the position before continuing. Read one step at a time and try it on the playing area. Match the instruction to the control you use.
Common questions
On this playing page, what is the goal of Calcudoku?
Here is the relevant explanation: Fill a 4×4 Latin square and satisfy every cage arithmetic target.
For my first round, 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.
For a quick reminder, what example helps explain Calcudoku?
For clarity: 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?
A correct cage total does not permit duplicate digits in a row.
For this browser game, what format does Calcudoku offer?
The key detail is this: Twelve puzzles with addition, multiplication, subtraction and singleton cages.
For my first round, 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.
