Notes on this puzzle
Kakuro #5308 is a 10×10 field with 62 white cells split into 40 runs: 22 across and 18 down.
9 of the 40 runs can be filled with only one set of digits:
- 3 in 2 → 1 + 2
- 4 in 2 → 1 + 3
- 16 in 2 → 7 + 9
- 24 in 3 → 7 + 8 + 9
- 15 in 5 → 1 + 2 + 3 + 4 + 5
- 16 in 5 → 1 + 2 + 3 + 4 + 6
The longest run is 5 cells long and 18 runs have only two cells, which is where the arithmetic is tightest. Clue totals go from 3 up to 35, with an average of 15.4.
Where to beginA good first target is the cell at row 1, column 9 of the field: the two runs crossing there settle it. Longer runs hide fewer certainties; build from the short runs inwards.