Logic Masters Deutschland e.V.

Rules:

1. Normal sudoku rules apply.
2. The black numbers outside the grid are sandwich clues (the numbers located between the 1 and 9 in the row or column relevant to the clue must sum to the indicated value).
3. The blue numbers outside the grid are X-sum clues (the first X digits from the direction of the clue must sum to the indicated value where X is the first digit).
4. Normal killer cage rules apply (the numbers in the cage must sum to the given total in the top left and numbers must not repeat in a cage).

Puzzle:

f-puzzles

Best of luck with the break-in :D