Logic Masters Deutschland e.V.

This was a challenge for me to set. Hopefully it will be enjoyable to solve. I predict the difficult is around 3.5 depending on how much you enjoying coloring :) Welcome any comments and/or feedback!

Rules:

1. Cells separated by a knights move may not contain the same digit

2. Digits on the diagonals may not repeat

3. Digits in cages may not repeat

4. Numbers on the outside of the grid are little killer clues and indicate the sum of the digits along the diagonal

5. Grey lines are palindromes

6. The cell in the center is a maximum cell and must be larger than all orthogonally adjacent cells

7. Normal Sudoku rules apply

F-puzzles link