THE PLAYBOOK · SXSRCB
How to play Calcudoku
Start Calcudoku by looking at the playing area and its controls. Fill a 4×4 Latin square and satisfy every cage arithmetic target. Look at what changes after your first action. Read the objective before making your first input. Check the relevant rule before repeating a move.
Twelve puzzles with addition, multiplication, subtraction and singleton cages.
A useful comparison
Compare the worked example with your own position. Use the reasoning, not an answer copied from a different board. Refer to the controls when needed.
Your goal
Fill a 4×4 Latin square and satisfy every cage arithmetic target. Keep that objective in view throughout the round. Notice how the game responds to your input.
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. Read a button’s label before selecting it. A new-round button replaces the current round.
A useful example
A two-cell 6× cage contains 2 and 3 in a 1–4 puzzle. Compare this with the rule that governs the move. Keep the controls nearby.
Watch out for this
A correct cage total does not permit duplicate digits in a row. Compare the situation with the worked example. After a move, check what changed. Decide which rule explains the new state before acting again.
Common questions
While learning, what is the goal of Calcudoku?
Fill a 4×4 Latin square and satisfy every cage arithmetic target.
While reading the Guide, 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?
Here is the relevant explanation: A two-cell 6× cage contains 2 and 3 in a 1–4 puzzle.
When I return, what should I watch out for in Calcudoku?
Keep this in mind: A correct cage total does not permit duplicate digits in a row.
For a quick reminder, what format does Calcudoku offer?
Keep this in mind: Twelve puzzles with addition, multiplication, subtraction and singleton cages.
For a quick reminder, 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.