Logic Masters Deutschland e.V.

1) Normal Sudoku rules apply:
Place the digits 1-9 into each cell of the grid. None of the rows, columns or boldly outlined 3x3 boxes contain repeated digits.

2) Normal Palindrome Sudoku rules apply:
Digits read in the order same from both ends of a grey line.

3) Standard Killer Sudoku rules apply:
The digits in a cage sum to the number at the top left corner of the cage.
Digits cannot repeat in a cage.

This is the puzzle:

You can try the puzzle here. As usual, all comments and ratings are always welcome.

I am not a native German speaker, I just use the translations of Google Translate. Therefore, corrections on the German text are highly appreciated.