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LYSTDQTHE EVERYDAY PLAY CLUB

Solo · FREE PLAY

Calcudoku

Read the rules ↓
Logic & numbers
Choose your controls and enjoy a free round.
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THE PLAYBOOK · LYSTDQ

Learn your way around Calcudoku

Try Calcudoku at your own pace and keep its objective in view. Fill a 4×4 Latin square and satisfy every cage arithmetic target. Check the relevant rule before repeating a move. Identify the playing area and the controls you need. Choose a clear next step rather than rushing through the instructions.

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

Practice with a purpose

Read one step at a time and try it on the playing area. Match the instruction to the control you use. Refer to the controls when needed.

The objective of a round

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.

The order of play

  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.

Choosing and moving on screen

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. Check any mode label before starting.

An example to follow

A two-cell 6× cage contains 2 and 3 in a 1–4 puzzle. Apply the same reasoning to the position in your own round. Notice the change in the playing area.

One detail worth checking

A correct cage total does not permit duplicate digits in a row. A different version of the game may use a different rule. Before your first action, say what you are trying to achieve. Then compare the result with the goal.

Questions that come up during play

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.

For a quick reminder, 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.

As a new player, what example helps explain Calcudoku?

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

Before I begin, what should I watch out for in Calcudoku?

For clarity: A correct cage total does not permit duplicate digits in a row.

While learning, 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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