Disjoint Fog
- Fog of war
- Kropki dots
- XV and number dots
- Arrows
- Little killers
The brief
- Normal Sudoku rules apply.
- Disjoint Set: Digits must not repeat at corresponding box positions.
- Digits along diagonals pointed to by arrows outside the grid must sum to the number listed.
- The digits along each arrow must sum to the digit in the circled cell. Digits may repeat along an arrow if other rules apply.
- A white dot between cells indicates cells with consecutive values. Not all dots are shown.
- Adjacent cells connected with an X must sum to 10.
- The grid is partially covered with fog. Correctly placed digits will clear the fog around that cell.