Singular Sensation
- Killer cages
- Whisper lines
- Numbered rooms
The brief
Normal sudoku rules apply.
Whisper: Adjacent digits along the grey line must differ by at least 3.
Killer: Digits in cages must sum to the small clue in the top left corner.
Numbered rooms: clues outside the grid indicate the digit which has to be placed in the Nth cell in the corresponding direction, where N is the digit placed in the first cell in that direction.