Petit Four
- Killer cages
- Renban lines
- Little killers
- Skyscrapers
The brief
Normal sudoku rules apply.
Renban: Pink lines contain a set of consecutive digits in any order.
Killer: Digits in cages must sum to the small clue in the top left corner.
Quadruple: Digits in circles must appear in one of the cells touched by the circle.
Little Killer: Digits along a diagonal indicated by an arrow outside the grid must sum to the attached value.
Skyscraper: Digits in the grid represent the heights of skyscrapers, and clues outside the grid indicate the number of skyscrapers visible in the corresponding row or column.