Logic Masters Deutschland e.V.

Standard Star Killer Sudoku rules apply (see below).

Additional constraints on placement of stars:

• Palindrome: The Xth cell from one direction of a black line and the Xth cell from the other direction of that line must both contain a star or both be empty.
• Each cell that contains a star has to be either '1' or '5'.

Additional constraints on values:

• Parity Mirror: Cells mirrored by the lines in r5 and c5 must change parity (high/low). E.g. If r1c1 is a low digit (12345) both r1c9 and r9c1 have to be a high digit (56789).
• (high/low-)Palindrome: The Xth cell from one direction of a red line and the Xth cell from the other direction of that line must either both be low (12345) or both be high (56789).
  Each '5' can act as both low or high, even at the same time.
• Renban: Digits on a purple line form a set of non-repeating consecutive digits in any order.

Star Killer Rules:
Place exactly two stars into each row, column and box. Stars may not share an edge (no diagonal constraint!). The number in the top-left corner of a cage (if given) gives you the number of stars, that are outside of the cage and share an edge with that cage.
Digits in a cage do not repeat and sum to the total X. The number in the top-left corner of a cage must be equal to the digit sum of X.

Solve online

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This puzzle is part of a series consisting of 12 puzzles. The series doesn't necessarily has to be solved in the intended order. If you're willing to attempt the whole series you can find part 1 here.

You can continue with the next part 10 here.