Logic puzzles
Calcudoku
Fill the grid so every outlined cage hits its target with its operation.
- 5–20 min
- Single player
- Today's puzzle
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How to play
- Use each number from 1 to N once in every row and column.
- The numbers in a cage must produce its target with the given operation.
- Subtraction and division cages always have two cells.
Controls
Select a cell and type a number. N toggles notes.
About this game
Free Calcudoku from 4×4 to 6×6 with addition, subtraction, multiplication and division cages and a daily puzzle. Every grid has a unique solution.
- Sizes
- 4×4 to 6×6
- Operations
- + − × ÷
- Solution
- Unique
