2-cell killer cage summing to 12
3 combinations.
- Always present
- No digit is forced into this cage.
- Never present
- 126
Valid digit combinations
- 39
- 48
- 57
How to use this in play
3 digit sets sum to 12 across 2 cells. Without other constraints this cage is loose; the value comes from pairing it with the cage's row, column, or box context — every digit ruled out elsewhere narrows which combinations remain.