Logic Masters Deutschland e.V.

Here is the final puzzle in my series, featuring an example of most of the previous rules. Links to the other puzzles in this series are below. I hope you've enjoyed this theme!

Normal sudoku rules apply: Place the digits 1-9 once each in every row, column and 3x3 box.

Region sum lines: box borders divide a blue line into segments which have the same sum.

Parity lines: digits along a red line alternate between odd and even.

Renban: digits along magenta lines form a set of consecutive numbers without repeats.

Nabner: digits along yellow lines must all differ by at least two.

German Whispers. Adjacent digits along a green line always differ by 5 or more.

Dutch Whispers. Adjacent digits along an orange line always differ by 4 or more.

Kropki: Where two cells are connected by a black dot, one is double the other. Where two cells are connected by a white dot, they are consecutive.

Sudokupad link: https://sudokupad.app/v0cshd1zlh

Other puzzles in this series:

20.06.2026: Emeralds and Beads

21.06.2026: Sapphires and Beads

22.06.2026: Amethysts and Beads

23.06.2026: Rubies and Beads

24.06.2026: Ambers and Beads

02.07.2026: Pearls and Beads

11.07.2026: Citrines and Beads

19.07.2026: Jewels and Beads