Entropic Lines: Along a beige line, any group of three consecutive cells must contain on low {1,2,3}, one medium {4,5,6}, and one high {7,8,9} digit.
Each line must also obey one of the following:
German Whispers: Along a whisper line, adjacent digits must differ by at least 5.
Modular Lines: Along a modular line any three adjacent digits must all have different remainders when divided by 3.
Region Sum Lines: The digits along a region sum line must have the same sum within each 3x3 box the line passes through.
Renban: A renban line must contain a non-repeating set of consecutive digits which may appear in any order.
f-puzzles: https://f-puzzles.com/?id=2m22a347
CTC: https://tinyurl.com/yc8zbc23
Solution code: Row 1 + Column 6 (18 digits)
on 28. May 2023, 11:39 by by81996672
In the process of doing it, I always missed out on some possibilities, but luckily in the end, I realized it. Thank you for creating this puzzle.
on 24. May 2023, 22:21 by peterkp
Thank you. Tough puzzle for me, but some very rewarding moments.