Duck-Duck-Goose
- Killer cages
- Kropki dots
- XV and number dots
The brief
- Normal Sudoku rules apply.
- Disjoint Set: Cells in the same relative position in different boxes cannot contain the same digits.
- Digits in a cage do not repeat and sum to the clue in the top left.
- A black dot between cells indicates cell values with a 2:1 ratio. A white dot between cells indicates cells with consecutive values. Not all dots are shown.
- Adjacent cells connected with a X must sum to 10.