Logic Masters Deutschland e.V.

• Normal sudoku rules apply.
• Region sum line: Digits on the line have an equal sum within each box. (All of the line in box 8 counts toward one total.)
• Kropki: Digits separated by a white dot on an edge must be consecutive. Diagonally adjacent digits separated by a white dot on a corner must be consecutive. Digits separated by a black dot must be in a 1:2 ratio.

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Design inspired by Will Power's Pretzel und Rotbier!