Logic Masters Deutschland e.V.

Ripped Out

(Published on 28. July 2025, 16:18 by Black_Doom)

Rules:
  • Chaos Construction: divide the grid into regions, each consisting of nine orthogonally connected cells. Each row, column and region contains the digits 1-9 once each.
  • Zippers: digits an equal distance to the central cell (marked with a circle) of a lavender zipper line sum to the central digit. Additionally, the central cell cannot belong to the same region as its zipper's legs. Each leg must be contained within one region, but both zipper's legs may belong to two distinct regions.
  • Sightlines: the digit in a zipper's circle shows how many region cells it sees in its row and column, including the cell with the circle itself, until it reaches the borders of the region.
SudokuPad

Solution code: Row 9, left to right, with "-" representing the region borders (for example, 12-34-5-678-9)

Last changed on on 28. July 2025, 21:57

Solved by mellowrobinson, tuturitu, gdc, dustpan, lmdemasi, MaizeGator, raaaaa, deltameth, aqjhs, marcmees, jkuo7, BloodFalcon, rameshsrivats, damo_89, Dentones, sze, pmatos, halakani, AAAAAAAAAAAAAAAAAAA, bansalsaab, Bjd, bianbianPEI, Isael, zakkai, Nitwitter, zeniko, ManuH, jsalomon, Schmupiter, dogfarts, henrypijames, Brodie2000, cryptique, SparklePuzzle, Asphodel, kmoter, Clara123
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Comments

on 29. July 2025, 13:30 by rameshsrivats
Terrific puzzle. Thanks.

on 28. July 2025, 21:57 by Black_Doom
Smoothed out the solve path

Difficulty:4
Rating:96 %
Solved:37 times
Observed:1 times
ID:000OF5

Variant combination Online solving tool Dissection puzzle

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Solution code:

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