Normal 9x9 sudoku rules apply.
German whispers: Adjacent digits along a green line must differ by at least 5.
Biased entropic lines: Each adjacent set of three digits along a beige line contains one digit from {1, 2}, one digit from {3, 4, 5} and one digit from {6, 7, 8, 9}.
Solution code: 8th column from top to bottom, then the 8th row from left to right.
on 24. November 2025, 18:49 by philolologue
Oh my goodness this was a lovely one, great mental exercise without getting stuck too long at any one step, and clues used effectively right up to the end. So much fun!
on 19. November 2025, 19:51 by chis_r
Loved the bias on the lines, it created some really interesting deductions. Thank you!
on 18. November 2025, 14:49 by PinkNickels
Very fun solve. The revised entropy line requires one to be careful that muscle memory doesn't cause a mistake! :) Thanks for sharing. Really nicely set.
on 18. November 2025, 11:46 by Chelo
Very nice ruleset, thank you
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