3-cell killer cage summing to 12
7 combinations.
- Always present
- No digit is forced into this cage.
- Never present
- Every digit can appear in this cage.
Valid digit combinations
- 129
- 138
- 147
- 156
- 237
- 246
- 345
How to use this in play
7 digit sets sum to 12 across 3 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.