THE PLAYBOOK · SCBLUELAW
How to play Calcudoku
Make Calcudoku your next activity in the game library. Fill a 4×4 Latin square and satisfy every cage arithmetic target. Choose a clear next step rather than rushing through the instructions. Make your first input carefully and watch the result. Keep the game area visible while you use its controls.
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. Make the next step deliberately.
Your goal
Fill a 4×4 Latin square and satisfy every cage arithmetic target. Keep that objective in view throughout the round. The example below illustrates a decision.
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. Your next round may have a different position, so inspect it before acting. Keep the game’s format in mind.
Watch out for this
A correct cage total does not permit duplicate digits in a row. A different version of the game may use a different rule. When a decision goes wrong, compare it with the common mistake described below. Start again only when you intend to leave the current round.
Common questions
While reading the Guide, what is the goal of Calcudoku?
Keep this in mind: Fill a 4×4 Latin square and satisfy every cage arithmetic target.
How do I control Calcudoku?
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?
The key detail is this: A two-cell 6× cage contains 2 and 3 in a 1–4 puzzle.
On this playing page, what should I watch out for in Calcudoku?
A correct cage total does not permit duplicate digits in a row.
While learning, what format does Calcudoku offer?
Here is the relevant explanation: Twelve puzzles with addition, multiplication, subtraction and singleton cages.
As a new player, 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.