Logic Masters Deutschland e.V.

Rules:

**1) Non-consecutive**

Orthogonally adjacent cells cannot contain consecutive digits (difference ≠ 1).

**2) Antiking**

Cells that touch diagonally cannot contain the same digit.

**3) Antiknight**

Cells a knight’s move apart (in chess) cannot contain the same digit.

**4) Global entropy**

Every 2×2 box must contain digits from different categories (low/mid/high)

**5) Killer cages**

Digits within a cage sum to the given total.

**6) Region sum lines**

Along each blue line, digits within each region sum to the same total for every region the line passes through.

**7) Ratio Kropki dots**

A dot between two cells indicates one digit is exactly double the other.

**8) German whisper lines**

Adjacent digits along a green line must differ by at least 5.

Solve here