Logic Masters Deutschland e.V.

Rules: Normal Sudoku rules apply. Place the digits 1 to 9 once each in each row column and box.
Region Sum Line: The sum of the digits on a line within a single box must be the same for each box that line passes through.
Killer Cages: Digits in a cage sum to the total in the top left corner of the cage.

Links:
F-Puzzles: https://f-puzzles.com/?id=y35buzz9
CtC App: https://tinyurl.com/2rk8mzy5