Logic Masters Deutschland e.V.

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Rules:

• Normal sudoku rules apply - Place the digits 1 through 9 once in each row, column, and 3x3 box.
• German Whispers - Neighboring digits along the green line differ by at least 5.
• Parity Line - Digits along the red line alternate between even and odd.
• Entropic Line - Any set of 3 consecutive cells along a yellow line must include a low digit [123], a medium digit [456], and a high digit [789].
• Region Sum Line - Box borders divide the blue line into segments with the same sum.
• Kropki - Digits separated by a white dot are consecutive. Digits separated by a black dot are in a 1:2 ratio.