Quad Corner - Entropy
- Killer cages
- Entropic lines
- Quadruples
The brief
Normal sudoku rules apply.
Entropy Rows: Every 3 consecutive cells along each row must contain a low digit (1,2,3), middle digit (4,5,6) and high digit (7,8,9).
Quadruples: Digits in the white circle must appear in at least one of the four surrounding cells.
Killer Cages: Digits in cages cannot repeat and sum to the number given.