Logic Masters Deutschland e.V.

Sudoku: Normal Sudoku rules apply; place the digits 1-9 once in every row, column, and 3x3 box.

German Whisper Line (starting cells r1c2, r1c8, r7c2, r7c8): Digits along a green line differ by at least 5.

Renban Line (starting cells r2c5, r3c3, r3c5, r5c6): Digits along a magenta line contain a set of consecutive digits in any order, without repeats.

Black Kropki: Digits separated by a black dot have a ratio of 1:2.

White Kropki: Digits separated by a white dot are consecutive.

Expected Difficulty: 2.5 stars

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