Logic Masters Deutschland e.V.

Normal sudoku rules apply.

Normal little killer rules apply. Numbers outside the grid represent the sum of the digits along the indicated diagonal. Digits may repeat along the diagonal as long as they follow all other given rules.

Normal killer sudoku rules apply. Digits must sum up to the number in the top left corner. Numbers may not repeat in a given cage.

Digits in grey squares must be even.

In addition to the previous restrictions, there is a little killer clue that the solver must find. Digits along the hidden little killer sum to 27.

https://f-puzzles.com/?id=ya3qpx8g