Logic Masters Deutschland e.V.

Chaos Construction with Slitherlink clues #1

(Published on 20. September 2020, 16:25 by Phistomefel)

In this puzzle an irregular sudoku has to be solved, in which the shape of the areas must first be determined by means of slitherlink clues.

About the rules:
  • In every row, in every column and in every area, each number from 0 to 8 occurs exactly once.
  • The boundaries of the areas for the irregular sudoku are to be drawn along the dotted lines. The outer frame is given as a boundary.
  • Apart from the boundaries of the areas, there are no other edges to be drawn into the grid.
  • If there is a circle in a cell, the number in it indicates how many of the neighboring edges and corners are used for the area boundaries (the outer frame is counted, as well). The numbers in some of the clue cells have to be determined first.
For clarity: In this puzzle there is no slitherlink to be drawn - the clues are only here for the boundaries of the areas.

For illustration, here are all possible essential constellations for the slitherlink clues with corners and edges. An x on a dotted line means that this line cannot be part of an area boundary.



Here you find an example of this puzzle type on a 6x6 grid with the numbers from 1 to 6 rather than the numbers from 0 to 8:



The puzzle is also available online via Penpa Plus. Have fun solving!

Solution code: 6th row and 8th column

Last changed on on 29. December 2021, 10:34

Solved by Jesper, Eggr, bernhard, Dandelo, glum_hippo, Mesmer, wenchang, MartinR, MagnusJosefsson, cdwg2000, polar, puzzlemuncher69, Yohann, Zoidzerg, harrison, ArchonE, Debrutsid, zuzanina, ThrowngNinja, ... shadow-nexus, Bobbobert, marcmees, RyanDuarte56, CrazyCrypticC, Sewerin, Jodelbanane, jinkela114514, karlmortenlunna, Christounet, SeveNateNine, steeto, Felis_Timon, isajo4002, annaminous
Full list

Comments

on 9. March 2024, 16:11 by Christounet
Really nice to do one of those "early" chaos construction puzzles. Not that hard compared to what we are used to now... Danke :)

on 26. September 2023, 09:46 by CrazyCrypticC
The drawing of the regions was smooth, and beautifully telegraphed. The solve afterward became more of a slog, but it was worth it. It's a very nice puzzle.

on 29. December 2021, 10:34 by Phistomefel
Tag "Chaos Construction (Variante)" hinzugefügt.

on 12. September 2021, 11:29 by Prutsbeest
Very nice combination of rules. I enjoyed it!

on 21. August 2021, 18:41 by Phistomefel
Changed tags.

on 13. October 2020, 14:41 by Madmahogany
Lovely idea, quite a testing irregular sudoku though :D

on 22. September 2020, 18:16 by zuzanina
Ach so! Dann lag's ja doch nicht an meiner Ungeduld! Jetzt hatte ich auch nur noch eine Lösung im Beispiel. :-)
Ich freu mich schon auf's nächste...!

on 22. September 2020, 01:25 by Phistomefel
@MagnusJosefsson, @harrison:
Thanks a lot for you kind words! I am glad you liked it and I hope the follow-up puzzle meets your expectations.

on 22. September 2020, 01:20 by Phistomefel
Dankeschön für das Lob, zuzanina! Und ebenfalls vielen Dank für deinen Hinweis zum Beispiel - da hat sich doch ein Fehler eingeschlichen.

on 22. September 2020, 01:06 by Phistomefel
Beispiel korrigiert. Vielen Dank an zuzanina!

on 21. September 2020, 23:28 by zuzanina
Super schön! Vielen Dank! Und sooo schwer ist das Chaossudoku nun auch wieder nicht. Man kommt schön logisch durch!

Beim Beispiel hatte ich zwar mehrere Lösungen, aber wahrscheinlich hatte ich nur nicht genug Geduld, meine Fehler zu finden, weil ich mich ans große Rätsel machen wollte... ;-)

on 21. September 2020, 15:46 by harrison
@Phistomefel
Another incredibly creative and ingenious puzzle from you, as expected.

I also found the irregular sudoku difficult. I'm interested to see how you manage a "harder" follow-up.

on 21. September 2020, 11:27 by MagnusJosefsson
Very nice concept and puzzle, would love to see another one!

on 21. September 2020, 10:57 by Phistomefel
Titel geändert

on 21. September 2020, 10:51 by Phistomefel
Dankeschön für Euer Feedback! Der Tipp, das Wörtchen "Introduction" wegzulassen, gefällt mir. Danke, Dandelo! :)

Last changed on 20. September 2020, 21:10

on 20. September 2020, 21:09 by glum_hippo
Schöne Idee, sehr schöne Ausführung

Last changed on 20. September 2020, 20:40

on 20. September 2020, 20:36 by Dandelo
Ich finde es klasse, warum sollte es einfach sein? Lass halt "Introduction" im Titel weg. Aber der Schwierigkeitsgrad ist doch ok.

Im Sudokuteil waren ein paar trickreiche Schlüsse, aber die machen gerade den Reiz aus. Es geht aber immer irgendwo einen Schritt weiter.

on 20. September 2020, 20:27 by Phistomefel
Increased difficulty rating

on 20. September 2020, 20:26 by Phistomefel
Thank you for the valuable feedback! It seems like the irregular Sudoku part is too difficult for a good introductory puzzle. Sorry for that.

on 20. September 2020, 20:17 by Eggr
The lines were interesting once I understood how they worked (Thank you for the illustration) but the resulting irregular sudoku was brutal.

on 20. September 2020, 17:19 by Phistomefel
Beispiel korrigiert - vielen Dank an Olima!

Difficulty:4
Rating:96 %
Solved:84 times
Observed:10 times
ID:0004CJ

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