Kakuro: sum 13 in 3 cells
A sum of 13 in 3 cells can be made 7 ways.
| Combination | Digit set |
|---|---|
| 1 + 3 + 9 | 139 |
| 1 + 4 + 8 | 148 |
| 1 + 5 + 7 | 157 |
| 2 + 3 + 8 | 238 |
| 2 + 4 + 7 | 247 |
| 2 + 5 + 6 | 256 |
| 3 + 4 + 6 | 346 |
What this tells you
- There are 7 possibilities, so this clue alone does not decide the digits. Use crossing runs and any known cells to eliminate combinations.
- Every digit from 1 to 9 appears in at least one combination, so there is nothing to exclude outright.
Related sums
The digits left out of each combination form a combination for the mirror run: sum 32 in 6 cells.