Notes on this puzzle
Kakuro #5302 is a 10×10 field with 62 white cells split into 40 runs: 22 across and 18 down.
15 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
- 17 in 2 → 8 + 9
- 6 in 3 → 1 + 2 + 3
- 7 in 3 → 1 + 2 + 4
The longest run is 6 cells long and 14 runs have only two cells, which is where the arithmetic is tightest. Clue totals go from 3 up to 30, with an average of 14.8.
Where to beginA good first target is the cell at row 1, column 4 of the field: the two runs crossing there settle it. Longer runs hide fewer certainties; build from the short runs inwards.