THE PLAYBOOK · JINSHENGTEC
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. Use the example below to understand a decision. Check the rule that explains your first action. Keep the game area visible while you use its controls.
Twelve puzzles with addition, multiplication, subtraction and singleton cages.
One thing to notice as you play
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.
What counts as success
Fill a 4×4 Latin square and satisfy every cage arithmetic target. Read that aim before choosing your first action. Follow this game’s rules rather than another version’s.
How a round unfolds
- 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.
Keyboard and screen 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. Make sure you are interacting with the game rather than the surrounding page.
See the idea in action
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. Look for the relevant detail.
Pay attention to this rule
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. When a decision goes wrong, compare it with the common mistake described below. Start again only when you intend to leave the current round.
Questions about this game
For this browser game, what is the goal of Calcudoku?
Here is the relevant explanation: Fill a 4×4 Latin square and satisfy every cage arithmetic target.
When I return, 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?
The key detail is this: 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?
For clarity: A correct cage total does not permit duplicate digits in a row.
What format does Calcudoku offer?
Keep this in mind: Twelve puzzles with addition, multiplication, subtraction and singleton cages.
When I return, which play mode does Calcudoku use?
Here is the relevant explanation: The mode on this page is Solo. Same-device play uses one screen; this game library does not provide internet matchmaking.