Logic Masters Deutschland e.V.

Rules:

Normal Sudoku rules apply.

Global Entropy: In any 2×2 block of cells within the grid there must be at least one low digit (1,2,3), one middle digit (4,5,6), and one high digit (7,8,9); except

Anti-entropy dots: A 2×2 block of cells with a grey diamond in the middle must not fulfill the Global Entropy rule; that is at least one entropic rank must not appear in such a 2×2 block of cells.

German Whispers lines: Adjacent digits along German Whispers lines must differ by at least five. Digits may repeat on a line, if allowed by other rules.

F-Puzzles

CTC (with solution check)