Dragonfly
- Thermometers
- Negative constraint
- XV and number dots
The brief
Normal sudoku rules apply.
Any two orthogonally adjacent cells cannot sum to 10.
Along the thermometer, digits must increase from the bulb end.
Adjacent digits along a red line must alternate in parity (odd/even).
Purple lines contain a non-repeating set of consecutive digits in any order.
Orthogonally adjacent digits separated by the lime line must differ by exactly 2.