Logic Masters Deutschland e.V.

Rules:

Normal sudoku rules apply.

Each dot marks the end of a familiar line constraint, and must be joined to another dot of the same color. The line paths between dots move orthogonally and may not cross one another. Each line constraint is indicated by the color of its dots. Line paths may not cross the shaded gray cells.

• Renban (purple/R): Digits on renban line form a set of consecutive non-repeating digits in any order.
• Region sum (blue/S): Cells along a region sum line in each 3x3 box it passes through sum to the same total.
• German whispers (green/W): Adjacent digits along a whisper line must differ by at least 5.
• Modular lines (yellow/M): Each series of three adjacent digits along a modular line contains one digit from each set of {147}, {258}, and {369}.
• Entropic lines (orange/E): Each series of three adjacent digits along an entropic line contains one digit from each set of {123}, {456}, and {789}.

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