O Tannenbaum(O Christmas Tree)
- Kropki dots
- XV and number dots
- Whisper lines
The brief
Normal Sudoku rules apply. Numbers on the green line are at least 5 apart from their neighbors on the line. Numbers may repeat on the green line. Numbers with a black dot between them are in a ratio of 2:1. Numbers with an X between them sum to 10. Not all possible X and dots are given. The brown line has no effect on the puzzle.