Logic Masters Deutschland e.V.

Normal sudoku rules apply. In addition:

Parity Lines: Each line has two circles. One of these circles gives the total number of odd digits on the line, and the other circle gives the total number of even digits on the line. Both of these totals include the digits in the circles. For each line, the solver must determine which circle counts the even digits and which counts the odd digits. Digits may repeat along a line if allowed by the other rules.

Anti-Knight: Digits must not repeat in cells that are a chess knight's move apart.

Cages: The digits in a cage must sum to the number printed in its corner. Digits may not repeat within a cage.

CTC: https://tinyurl.com/mrtvke47

F-puzzles: https://f-puzzles.com/?id=yaqsy7ew