Helicopter
- Anti-king
- Thermometers
- Region sum lines
- Whisper lines
The brief
Normal sudoku rules apply.
Along thermometers, digits must increase from the bulb end.
Adjacent digits along the green line must differ by at least 5.
Box borders divide the blue line into segments with the same sum.
Adjacent digits along a yellow line cannot be consecutive.
Cells separated by a king's move cannot contain the same digit.