Logic Masters Deutschland e.V.

Rule set:

• Normal sudoku rules apply.
• Lines are both Modular, Dutch Whisper and Equal Sum Lines.
• Modular lines: every set of three sequential digits along a line must contain a complete set of residues modulo 3, i.e. one digit from {1,4,7}, one from {2,5,8}, and one from {3,6,9}.
• Dutch Whisper Lines : Neighbouring digits along the lines must differ by at least 4.
• Equal Sum Lines : For each line, the digits on the line have an equal sum within each box the line passes through.
• Lines that do not cross several boxes sum to any total, but are still Modular and Dutch Whisper Lines.
• Digits may repeat on a line, if allowed by other rules.

Play online using CTC App or F-Puzzles