THE PLAYBOOK · YINGONG123
How to play Calcudoku
Choose Calcudoku at YINGONG123 for a browser session with its rules close at hand. The aim is straightforward: Fill a 4×4 Latin square and satisfy every cage arithmetic target. This edition highlights first-round orientation.
Twelve puzzles with addition, multiplication, subtraction and singleton cages.
First-round orientation
Before playing, identify the objective and the input controls. Use your first round to learn what changes after a valid action.
Your goal
Fill a 4×4 Latin square and satisfy every cage arithmetic target.
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.
A useful example
A two-cell 6× cage contains 2 and 3 in a 1–4 puzzle.
Watch out for this
A correct cage total does not permit duplicate digits in a row.
Common questions
What completes a round?
Fill a 4×4 Latin square and satisfy every cage arithmetic target.
Which controls should I use?
Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution.
What can I play here?
Twelve puzzles with addition, multiplication, subtraction and singleton cages.
Does play involve an account or cash?
No. Play is free, without registration, deposits, bets or cash prizes.
