Crab
- Kropki dots
- Thermometers
- Palindromes
The brief
Normal sudoku rules apply.
Along thermometers, digits must increase from the bulb end.
Dark grey lines are palindromes and must read the same in both directions.
Digits along the red line all have the same parity (odd or even).
Digits separated by a white dot must be consecutive. Digits separated by a black dot must be in a 1:2 ratio. Not all dots are given.