Harmonious Thermos
- Thermometers
The brief
- Normal sudoku rules apply, i.e. each row, column and 3x3 region has to contain the digits from 1 to 9 once each.
- Harmonious Thermometers: Digits along a thermometer must strictly increase from the bulb end. Additionally, the sum of the digits along a thermometer must be divisible by its number of cells. For example, if a thermometer consists of three cells, the sum of its digits must be a multiple of 3.