4-cell Kakuro run summing to 26
5 combinations.
- Always present
- No digit is forced into this run.
- Never present
- 1
Valid digit combinations
- 2789
- 3689
- 4589
- 4679
- 5678
How to use this in play
5 digit sets sum to 26 across 4 cells. The run on its own is permissive; its constraints become useful when intersected with the perpendicular runs at each of its cells.
Forbidden digits: 1. None of this digit appears in any valid combination, so you can rule it out of the run's cells immediately.