Logic Masters Deutschland e.V.

Heyawake Chaos

(Eingestellt am 27. Januar 2026, 07:31 Uhr von mellowrobinson)

This puzzle was inspired by SennyK's Heyawake Sudoku. Stay tuned for another Heyawake Chaos Construction from the both of us!

  • Chaos Construction:
  • Draw region borders in the grid so that:
    • There are nine regions, and each region contains the digits 1-9 once each.
    • Digits do not repeat in a row or column.
    • The grid can also be completed by the Heyawake rules explained below.
  • Some region borders are given.
  • Heyawake:
  • Shade some cells so that no two shaded cells are orthogonally adjacent, and all unshaded cells are orthogonally connected.
  • There cannot be a horizontal or vertical line of unshaded cells that goes through 2 or more region borders.
  • The digit in a circle indicates the number of shaded cells in its region.
  • The digit on a square indicates the number of unshaded cells in the (up to 9) surrounding cells.
  • A small number clue indicates the sum of shaded digits in its region.

Solve on Sudokupad




You can see on the example above how Standard Heyawake works. You can also try to play an example here or a big 9x9 heyawake here before you solve the puzzle. (courtesy of SennyK) Rules are also explained here.

Lösungscode: shaded digits in the top four rows

Zuletzt geändert am 27. Januar 2026, 08:26 Uhr

Gelöst von SennyK, bansalsaab, Franjo, Jesper, Neumino, NEWS, Dentones, dogfarts, gdc, sehringdipity, h5663454, TitaniaLowe, randomra, BeeBoi
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Kommentare

Gestern, 21:32 Uhr von randomra
A lot is going on in this puzzle. Every type of info was used throughout my solve and the difficulty was consistent throughout too! A great experience!

am 29. Januar 2026, 15:27 Uhr von gdc
Very fun! I initially wanted to skip this because pencilpuzzles are not my strength, but my brain was itching me "what about the heya CC?", so I finally gave it a try.

It took me a bit to find a good notation, which I think is very important for puzzles like these. The deductions are definitely all very fair and smooth, but it's still a 4* that requires some heyawake basics :P

am 27. Januar 2026, 19:10 Uhr von Franjo
Thank you very much for creating and sharing this interesting CC-puzzle. I love the combination with Heyawacky.

am 27. Januar 2026, 08:23 Uhr von SennyK
Lovely! I really like how things are working in your version, nicely done. Thank you for this very fun to solve puzzle :-)

Schwierigkeit:5
Bewertung:98 %
Gelöst:14 mal
Beobachtet:3 mal
ID:000R6S

Lösung abgeben

Lösungscode:

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