Notes on this puzzle
Kakuro #5402 is a 11×11 field with 71 white cells split into 42 runs: 23 across and 19 down.
12 of the 42 runs can be filled with only one set of digits:
- 4 in 2 → 1 + 3
- 16 in 2 → 7 + 9
- 17 in 2 → 8 + 9
- 6 in 3 → 1 + 2 + 3
- 24 in 3 → 7 + 8 + 9
- 10 in 4 → 1 + 2 + 3 + 4
The longest run is 6 cells long and 18 runs have only two cells, which is where the arithmetic is tightest. Clue totals go from 4 up to 36, with an average of 16.6.
Where to beginA good first target is the cell at row 1, column 3 of the field: the two runs crossing there settle it. On a field this size, keep notes on the long runs and recheck them whenever a crossing cell is filled.