Alarm Clock
- Kropki dots
- XV and number dots
- Parity lines
The brief
Normal sudoku rules apply.
Adjacent digits along the red line must alternate in parity (odd/even).
Grey lines are thermometers. Digits along thermometers must increase from the bulb to the tip, which can be on either end and are to be deduced.
Digits separated by a white dot must be consecutive. Digits separated by an X must sum to 10. Not all dots and X are given.
Cells in the same position within two 3x3 boxes cannot contain the same digit (disjoint sets).