What Cage Combinations Are
A cage combination is the set of number groups that can fit a cage total without repeating digits inside the same cage.
Examples
- 2 cells that sum to 5 can be 1 + 4 or 2 + 3.
- 3 cells that sum to 6 can be 1 + 2 + 3.
Why Combinations Help
Once you know the allowed groups, you can compare them against rows, columns, boxes, and other cages. That often removes candidates before the grid gets crowded.
How This Website Uses Them
Killer Sudoku Online shows Cage Hint combination tags so you can inspect the legal groups for the selected cage without exposing direct answers.