Logic Masters Deutschland e.V.

This is a variant of sudoku.
Regular Sudoku rules apply:
Each row, column, and 3×3 box contain numbers 1~9.
Knight's Tour rules apply:
The knight moves from the marked cell according to the rules of chess to the end of the star cell,
and the numbers on the movement path start from 1 and gradually increase to 9 then getting in the loop.
The knight may not pass through the given numbers.
Here is the example puzzle (5×5 version):

Try examle puzzle.

Main Puzzle:

CTC link.

Penpa link. Enjoy the puzzle :D