Happy 100th Stream, Tris!
- Kropki dots
- XV and number dots
- Region sum lines
- Whisper lines
- Little killers
The brief
- Normal sudoku rules apply, i.e. each row, column and 3x3 box has to contain the digits from 1 to 9 once each.
- Region Sum Lines: Box borders divide the blue lines (Tris) into segments with the same sum. (Different lines may have different sums.)
- German Whispers: Adjacent digits on a green line (100) must have a difference of at least 5.
- Little Killers: Digits on a marked diagonal must sum to 10.
- Kropki: If two digits are joined by a black dot, one is double the other. (Not all black dots are given.)
- V: Digits joined by a V sum to 5. (Not all V are given.)