Logic Masters Deutschland e.V.

Whispers of the Zeitgeist

(Published on 31. August 2026, 14:20 by starchacer)

Although this graph seems reflective of some global activity, I hope it isn't of reflective of your accounts.

  • Normal Sudoku Rules: Fill each row, column, and 3x3 box with the digits 1-9 once each.
  • Negative Diagonal: Digits along the negative diagonal (R1C1 to R9C9) must be unique.
  • German Whispers: Along green lines, digits must differ from their neighbors by at least 5.
  • Renban: Purple lines contain a non-repeating set of consecutive digits in any order.
  • Killer Cages: Digits in cages must not repeat and must sum to the number in the upper left corner of the cage (if present).
  • X/V: Cells separated by X must sum to 10. Cells separated by V must sum to 5.
  • Odd: Digits in gray circles are odd.

Play online using Sudokupad

Solution code: Row 2 from left to right.

Last changed on on 31. August 2026, 15:42

Solved by EmX68, biorycbyd, Ph1nt, Baklin, abs, hige, MathingChar, macronate, miranda_9, penny121, Kichelle, fuxia, doodManBro, jordanza, fergus, Ste1729, Karitsu, slowbiex, Testpilot Pirx, mijq, ErwinR, ... zixx, Wunderwald, Vaurien, NEWS, Uhu, Rjw78, jgarber, busby, clem, Maldivia, Crul, TaeChi, BMP.Freak, lueluelue, claire38, kelvin, McMingus, imagle, Dshep, anano, Photyne, abadx, marajade
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Comments

on 31. August 2026, 15:42 by starchacer
Added missing odd circle rule.

Last changed on 31. August 2026, 15:44

on 31. August 2026, 14:54 by EmX68
Nice puzzle. Is the odd circle rule missing? Without using it the puzzle has three possible solutions.

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(starchacer): With so many rules, it's not surprising that I missed one, but missing one that removes uniqueness is clearly less than ideal! Thanks for letting me know, I've updated the rules!

Difficulty:1
Rating:89 %
Solved:101 times
Observed:0 times
ID:000UN9

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Solution code:

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