Notes on this puzzle
Kakuro #5208 is a 8×8 field with 46 white cells split into 30 runs: 14 across and 16 down.
9 of the 30 runs can be filled with only one set of digits:
- 16 in 2 → 7 + 9
- 17 in 2 → 8 + 9
- 6 in 3 → 1 + 2 + 3
- 7 in 3 → 1 + 2 + 4
- 23 in 3 → 6 + 8 + 9
- 35 in 5 → 5 + 6 + 7 + 8 + 9
The longest run is 5 cells long and 12 runs have only two cells, which is where the arithmetic is tightest. Clue totals go from 5 up to 35, with an average of 15.7.
Where to beginA good first target is the cell at row 1, column 6 of the field: the two runs crossing there settle it. Use the crossings: a cell's digit must be allowed by both its runs.