Logic Masters Deutschland e.V.

Modframe

(Published on 25. September 2026, 12:37 by gwai77)

  • Place the digits 1 to 9 in each row, column and box 3x3 without repetition.
  • Digits cannot repeat along the negative diagonal.
  • Every 3 consecutive cells along a 3-modular line must contain a complete set of residuals modulo 3. i.e: one from (3,6,9), one from (1,4,7) and one from (2,5,8).
  • Every 3 consecutive cells along an entropic line must contain a low digit (1,2,3), middle digit (4,5,6) and high digit (7,8,9).
  • Cells connected by a German whisper line must have a difference of at least 5.
  • Cells separated by a white dot must be consecutive.Cells separated by a black dot must have a ratio of 2.Not all dots are given.

Solution code: row 5

Last changed on on 25. September 2026, 13:31

Solved by jalebc, efnenu, ellen_suduko, SKORP17, Bjd, by81996672, lancer102rus, Rocker, rdesmarais2
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Comments

Last changed on 27. September 2026, 18:45

on 27. September 2026, 17:49 by rdesmarais2
Very beautiful puzzle. The break in took me far too long to spot but in hindsight it was very straightforward.
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Many thanks!

Last changed on 27. September 2026, 18:45

on 26. September 2026, 14:57 by Rocker
This was really enjoyable! :)
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Thank you!

Difficulty:3
Rating:N/A
Solved:9 times
Observed:0 times
ID:000V4U

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Solution code:

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