On and off
- Whisper lines
- Nabner lines
The brief
Normal irregular 8x8 Sudoku rules apply, i.e. each row, column and region has to contain the digits from 1 to 8. All cages are Rellik Cages. In a Rellik Cage digits do not repeat, and any combination of one or more digits within that cage CANNOT sum to the value in the top left.The golden lines are Nabner lines, i.e. on a golden line there may not be consecutive or repeated digits. Adjacent digits on a green line must differ by at least 4.