Logic Masters Deutschland e.V.

This puzzle was created for the Cracking The Cryptic Discord fan server's monthly "Puzzle Prompt" for Jan 2021, "broken puzzles".

Preamble:

The problem with creating a puzzle using thermometer, palindrome, and odd cell constraints is that a palindrome with a single odd cell constraint looks very similar to a thermometer. Fortunately, I remembered to write down which was which while creating the puzzle. Unfortunately, it turns out dogs don't just eat homework! What a disaster!

Rules:

• Normal sudoku rules apply.
• For each connected line and circle, either:
  1. They represent a thermometer (numbers on a thermometer must strictly increase as they move away from the bulb).
  2. The circle must contain an odd digit and the line (which extends into the circle) is a palindrome (if a number appears as the xth cell from one end of a palindrome, it must also appear as the xth cell from the other end).

Puzzle:

f-puzzles

Happy solving!