The Grass is Always Greener in the Other Corners
- Killer cages
- Whisper 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.
- Killer Cages: Digits in a cage must sum to the clue in the top left.
- German Whispers: Adjacent digits on a green line must have a difference of at least 5.