Killer Dots in the Fog
- Fog of war
- Killer cages
- Kropki dots
- Little killers
- Negative constraint
The brief
- Normal Sudoku rules apply.
- Disjoint Set: Digits must not repeat at corresponding box positions.
- A black dot between cells indicates cell values with a 2:1 ratio. ALL BLACK DOTS ARE SHOWN
- Digits along diagonals pointed to by arrows outside the grid must sum to the number listed.
- The digits in a cage must sum to the number printed in its corner. Digits cannot repeat within a cage.
- The grid is partially covered with fog. Correctly placed digits will clear the fog around that cell.