Logic Masters Deutschland e.V.

• Normal Sudoku rules: Place the digits 1-9 in each row, column and box, without repeats.
• Arrows: Digits on an Arrow sum to the digit in the attached circle.
• Renban: Digits on a thinner purple line form a set of consecutive, non-repeating digits, in any order.
• German Whispers: Adjacent digits on a green line differ by at least 5.
• Entropic lines: Any sequence of 3 adjacent digits on a hollow peach line has to contain a small (1,2,3), a mid (4,5,6) and a high (7,8,9) digit.

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