Quartered
- Arrows
- Whisper lines
The brief
Normal sudoku rules apply.
Digits along an arrow must sum to the digit in that arrow's circle.
Adjacent digits along a green line must differ by at least 5.
Adjacent digits along an orange line must differ by at least 4.
A set of three sequential cells along a peach line must contain a low [123], middle [456], and high [789] digit.
A set of three sequential cells along a teal line must contain one digit from [147], one from [258], and one from [369].
Digits separated by a grey dot must sum to 5 or 10.