Logic Masters Deutschland e.V.

Normal Sudoku rules apply. Lines that include the same number of cells contain exactly the same set of digits, including the same repeated digits if there are any.

Region Sum Line: The value of cells within each 3x3 box along the dark blue line sum to the same amount

German Whisper: The values of adjacent cells on the green line have a difference of at least 5.

Dutch Whisper: The values of adjacent cells on the orange line have a difference of at least 4.

Modular Line: Any set of three sequential cells along the teal line contains one digit from (1,4,7), one digit from (2,5,8), and one digit from (3,6,9).

Entropic Line: Any set of three sequential cells along the yellow line contains one digit from (1,2,3), one digit from (4,5,6), and one digit from (7,8,9).

Zipper Line: Digits an equal distance from the centre of the purple line must sum to the digit in the centre of the purple line.

Play in the CTC App

I hope you enjoy, please let me know in the comments