Notes on this puzzle
Kakuro #5102 is a 6×6 field with 20 white cells split into 16 runs: 8 across and 8 down.
6 of the 16 runs can be filled with only one set of digits:
- 3 in 2 → 1 + 2
- 4 in 2 → 1 + 3
- 10 in 4 → 1 + 2 + 3 + 4
The longest run is 4 cells long and 12 runs have only two cells, which is where the arithmetic is tightest. Clue totals go from 3 up to 27, with an average of 9.1.
Where to beginA good first target is the cell at row 1, column 2 of the field: the two runs crossing there settle it. Every run here can be settled from its combinations; check the small and large totals first.