Bread and Butter
- Killer cages
- Entropic lines
The brief
- Normal sudoku rules apply, i.e. each row, column, and 3x3 region has to contain the digits from 1 to 9 once each.
- Entropic Lines: Any three adjacent digits along a peach line must contain one low digit (1, 2, or 3), one medium digit (4, 5, or 6) and one high digit (7, 8, or 9).
- Killer cages: Digits in a cage must sum to the clue in the top left.