2-cell Kakuro run summing to 5
2 combinations.
- Always present
- No digit is forced into this run.
- Never present
- 56789
Valid digit combinations
- 14
- 23
How to use this in play
Only 2 digit sets sum to 5 across 2 cells. That makes this run useful for cross-reference deductions: a digit you can rule out from one of the cells (because the perpendicular run forbids it) often forces the entire combination.