Tunnel Vision
- XV and number dots
- Region sum lines
- Whisper lines
- Parity lines
The brief
Normal sudoku rules apply.
Digits along the blue line sum to the same value in each 3x3 box the line passes through.
A set of three sequential cells along the teal line must contain one digit from [147], one from [258], and one from [369].
Adjacent digits along the red line must alternate in parity (odd/even).
Adjacent digits along the orange line must differ by at least 4.
Digits separated by an X must sum to 10. Not all X are given.