Submarine
- Thermometers
- Region sum lines
- Renban lines
The brief
Normal sudoku rules apply.
Along the thermometer, digits must increase from the bulb end.
Digits an equal distance from the center of the lavender line must sum to the digit on the center of that line.
Red lines contain a non-repeating set of consecutive digits in any order.
Box borders divide blue lines into segments with the same sum.
Cells in the same position within two 3x3 boxes cannot contain the same digit (disjoint sets).