Logic Masters Deutschland e.V.

Normal sudoku rules apply.
Purple lines contain a non-repeating set of consecutive digits, in any order.
Digits in cells separated by a V sum to 5. Digits in cells separated by an X sum to 10. (Not all possible Vs and Xs are given.)
Digits in cells with a gray circle must be odd. Digits in cells with a gray square must be even.
For every digit N in a shaded cell, N is also the length of the longest vertical German whisper sequence, in which adjacent digits have a difference of at least five, in that column (the shaded cell itself is not necessarily part of the sequence, and there can be multiple non-overlapping sequences of length N in the same column). If a shaded cell contains a 1, then no two adjacent digits in that column can have a difference of five or greater.

F-Puzzles
CtC