I know, not that much parity like the others on this series, but this idea was based on some parity themed rules testing. The difficulty was estimated to be around 2.5* - 3.5*. Have fun!
Normal Sudoku rules apply.
XV: Digits separated by a V must sum to 5, but not all V clues are given. Digits separated by an X must sum to 10, and all possible X clues are shown.
Unique XV: Each horizontal X pair and each horizontal V pair must contain a unique unordered pair of digits. In other words, a pair such as 4-6 cannot appear again in either order within another horizontal clue. The same rule applies independently to vertical X pairs and vertical V pairs.
Altered German Whisper: Adjacent digits along a green line must have a different parity (odd/even) and must differ by at least 5.
Thermometer: Digits on a grey thermometer must strictly increase from the bulb to the tip.