- Digits in cages sum to the total in the top left corner of the cage. Digits may not repeat in cages.
- Digits separated by a small white dot are consecutive. Not all possible small white dots are given.
- Digits separated by a small black dot are 1:2 ratio. Not all possible small black dots are given.
- Digits in large white circles must appear in the surrounding cells.
- Digits on an arrow sum to the attached circle.
- Along the thermometer digits increase from the bulb end.
- Clues outside the grid show the sum of digits along the indicated diagonal; digits may repeat along the diagonal if allowed by other rules.
Solution code: The numbers in row 3