Logic Masters Deutschland e.V.

jolly green giant, his arms folded

(Eingestellt am 11. November 2025, 03:21 Uhr von mellowrobinson)

gdc and Scojo wanted more Mad Fold In—a ruleset by Gnubeutel—so I made two Chaos puzzles of varying difficulty. This one is "easier" than the Chaos Deconstruction, but the folded regions can be a challenge in and of themselves. However, I like the logic so much I might make even more folded Chaos, hope you enjoy it too!

  • Mad Fold-in:
  • If the columns between the dashed red lines are removed, all clues must remain valid in the resulting 4x9 grid.
  • Chaos:
  • Divide the grid into nine orthogonally connected regions, and fill each cell with a digit 1-9 so there are no repeats in any row or column.
  • Region borders must be drawn so that the folded grid is divided into four orthogonally connected regions, each containing the digits 1-9.
  • If there is a border in the folded grid on the red dashed lines, there must be a border in the corresponding positions of the unfolded grid, and vice versa.
  • Region Building:
  • In a cage, one of the digits is equal to the number of different regions which have at least one cell inside the cage.
  • Two green circles connected by a line are in the same region.
  • White dots separate two digits that are in different regions.
  • Killer: Digits in a cage do not repeat, and must sum to the indicated total, if given.
  • Split Peas: Digits between two circles sum to a two-digit number, where the 'tens' digit is in one circle and the 'ones' digit is in the other. Lines do not branch; there is one place where two separate lines cross. (r34c34)
  • Kropki: Digits separated by a white dot are consecutive. Note: the half-dots on the fold lines only apply to the folded grid.

9x9 version

Lösungscode: row 9, with a dash (-) for region borders


Gelöst von robokong, ralphwaldo1, aqjhs, marcmees, GentlemanJim, sehringdipity, Voidslime, sarabtx, by81996672, NEWS, 3ColorTheorem, pmatos, anabeane, Luaryo, mercierus, zeniko, SPring, Chaossudokusplease, dogfarts, sgerstenberger, einalem, redgecko, BHUNTER47, Bathroomking, Dester, zakkai, Scojo, karlmortenlunna, jkuo7, Neumino
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Kommentare

am 11. November 2025, 16:33 Uhr von marcmees
Well constructed. Gets a bit easier halfway through. A 4x9 affords few crazy shapes for regions. Enjoyed that. Thanks

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ID:000Q2J

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