Logic Masters Deutschland e.V.

Rules:

Normal sudoku rules apply: Place the digits 1-9 once each in every row, column and 3×3 box.

The flag pole is a thermometer: Digits increase from the bulb end

The lines all have a special meaning:
Red is a Renban: It contains a set of consecutive digits, in any order.
Orange is a Dutch whisper: Adjacent digits must have a difference of at least 4.
Yellow is a 3-whisper: Adjacent digits must have a difference of at least 3.
Green is a German whisper: Adjacent digits must have a difference of at least 5.
Blue is a Region-sum line: Sections of this line within every 3×3 box must have the same total.
Purple is a Parity line: Adjacent digits must have different parity (odd/even).

Digits separated by the X sum to 10.
Digits separated by the V sum to 5.