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HKCYJCTHE EVERYDAY PLAY CLUB

RULES & PRACTICE

How to Play Calcudoku

Play Calcudoku ↗

THE PLAYBOOK · HKCYJC

Calcudoku: how a round works

Start Calcudoku by looking at the playing area and its controls. Fill a 4×4 Latin square and satisfy every cage arithmetic target. Keep the game area visible while you use its controls. Make your first input carefully and watch the result. Choose a clear next step rather than rushing through the instructions.

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

Give this approach a try

When a decision goes wrong, compare it with the common mistake described below. Start again only when you intend to leave the current round. Make the next step deliberately.

Your objective

Fill a 4×4 Latin square and satisfy every cage arithmetic target. The feedback beside the game helps you follow the round. Return to the instructions when a step is unclear.

Work through the instructions

  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.

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. Use the visible help when you are unsure of the next input.

An example before you play

A two-cell 6× cage contains 2 and 3 in a 1–4 puzzle. Compare this with the rule that governs the move. Check the stated objective.

A mistake to avoid

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. 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.

Clarifying the way this game works

As a new player, what is the goal of Calcudoku?

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

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 this browser game, what example helps explain Calcudoku?

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

What should I watch out for in Calcudoku?

Here is the relevant explanation: 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.

Before I begin, which play mode does Calcudoku use?

Keep this in mind: The mode on this page is Solo. Same-device play uses one screen; this game library does not provide internet matchmaking.

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