Logic Masters Deutschland e.V.

Formicarium

(Published on 5. August 2026, 07:02 by lgastako)

This one should be quick and easy. As always I love feedback, positive or negative, so please leave comments with your thoughts below.

  • Normal Sudoku Rules: Fill each row, column, and 3x3 box with the digits 1-9 once each.
  • White Kropkis: Digits in cells separated by a white dot are consecutive.
  • Black Kropkis: Digits in cells separated by a black dot have a 1:2 ratio. All black kropkis are given (negative constraint applies).

Play online using Sudokupad

Solution code: Row 8, in order, left to right.

Last changed on on 22. August 2026, 13:59

Solved by vollbesonderbar, maniacaljackal, dskaff, Megalobrainiac, hige, NeroChaos, supersim2000, VeTaurus, Mozart40, rcg, RadchenkoAleksandr, jalebc, starchacer, Blummy, Porter , damyan_rm, FireShot7, ... xrrx, garycblack, uhu170, Spooof, Tompzini, jchan18, ebulku, me and the paws, josemadre, teuthida, Krisz, imagle, david.woitkowski, kangaroo, m_and_m_toastie, Rocker, ggwp, iamignat, Frank Puzzles
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Comments

on 22. August 2026, 13:59 by lgastako
Fixed formatting of link.

on 7. August 2026, 00:02 by Trik126
Plays more like a 3 star if you miss the negative constraint haha

on 5. August 2026, 14:03 by FireShot7
The negative constraint makes for a fluent walkthrough! Nice puzzle!

on 5. August 2026, 07:03 by lgastako
Mentioned negative constraint for black kropkis.

Difficulty:1
Rating:93 %
Solved:153 times
Observed:0 times
ID:000U78

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Solution code:

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