Test Tube
- Killer cages
- XV and number dots
- Thermometers
The brief
Normal Sudoku rules apply. Thermometers- Numbers on thermometers must increase from the bulb end. Killer Cages- Digits inside cages must sum to the number at the top left corner of the cage. Numbers cannot repeat in cages. XV- Digits separated by an X sum to 10. Digits separated by a V sum to 5. Not all X's and V's are shown.