Kakuro: sum 22 in 4 cells
A sum of 22 in 4 cells can be made 11 ways.
| Combination | Digit set |
|---|---|
| 1 + 4 + 8 + 9 | 1489 |
| 1 + 5 + 7 + 9 | 1579 |
| 1 + 6 + 7 + 8 | 1678 |
| 2 + 3 + 8 + 9 | 2389 |
| 2 + 4 + 7 + 9 | 2479 |
| 2 + 5 + 6 + 9 | 2569 |
| 2 + 5 + 7 + 8 | 2578 |
| 3 + 4 + 6 + 9 | 3469 |
| 3 + 4 + 7 + 8 | 3478 |
| 3 + 5 + 6 + 8 | 3568 |
| 4 + 5 + 6 + 7 | 4567 |
What this tells you
- There are 11 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 23 in 5 cells (page).