Logic Masters Deutschland e.V.

Miracle in Entropia

(Eingestellt am 9. Januar 2024, 11:40 Uhr von Mad-Tyas)

Dieses Rätsel ist sicher die bisher unglaublichste Entdeckung für Entropie-Sudoku: Entropie/Skyscraper mit einer eindeutigen Lösung mit lediglich 2 (!) Hinweisen.
Es ist außerdem sicher das schwierigste Entropie-Sudoku, das ich veröffentlicht habe. Aber es gibt mindestens einen logischen Weg, es zu lösen. Ich musste ihn selbst sehr lange suchen und bin froh ihn gefunden zu haben. Denn so kann ich dieses verrückte Wunder nun guten Gewissens präsentieren.

Regeln:

Sudoku: Fülle die Ziffern 1-9 in jede Zeile, Spalte und markierte 3x3-Box.

Skyscraper: Betrachte jede Ziffer im Raster als ein Gebäude entsprechender Höhe. Hinweise außerhalb des Rasters geben die Anzahl der Gebäude an, die aus dieser Richtung zu sehen sind, wobei größere Gebäude kleinere verbergen.

Entropie: Jede 2x2-Box im Gitter muss eine niedrige Ziffer (1, 2, 3), eine mittlere Ziffer (4, 5, 6) und eine hohe Ziffer (7, 8, 9) enthalten

Viel Spaß beim Lösen!

Sudoku bei:
CTC-App
f-puzzles

Lösungscode: Zeile 9 (9 Ziffern)


Gelöst von jalebc, Megalobrainiac, Dentones, samuel1997, SKORP17, ancarro, h5663454, Playmaker6174, PierreTombal, TrollErgoSum, Xalothros, Snookerfan, ohnoitsadalek, itweb, akamchinjir, AKernel, jseng, palpot, flipout, nordloc, ascension, Silverstep, DaleVandermeer, SirJefferE, Mikemerin, quantumquark1, SXH
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Kommentare

am 7. März 2024, 09:25 Uhr von SirJefferE
Whew! Thought I'd go mad during the middle portion. Row six was nasty!

am 8. Februar 2024, 05:21 Uhr von Silverstep
5/5 difficult for sure. global entropy is very powerful, and logical deductions can hide in places you least expect.

Zuletzt geändert am 11. Januar 2024, 14:29 Uhr

am 11. Januar 2024, 11:18 Uhr von ohnoitsadalek
i really love these global entropy puzzles! interesting to see how it increases with high value skyscraper clues

-Reply: Thank you for solving and your comment! It's always a pleasure to read that someone loves the global entropy constraint.

Zuletzt geändert am 11. Januar 2024, 14:28 Uhr

am 11. Januar 2024, 09:58 Uhr von Snookerfan
Incredible puzzle! Took me just under 6 hours to solve logically. 12 stars for difficulty, but really a miracle grid. The only reason I didn't give up was that your puzzles are always absolutely brilliant and worth my time. Thank you

-Reply: Thank you very much for taking so much time to logically work your way through the puzzle! I always appreciate your comments on my puzzles. "12 stars for difficulty" made me laugh :-D
But considering some other entropy puzzles that were rated 5 stars for difficulty it seems appropiate.

Zuletzt geändert am 11. Januar 2024, 14:20 Uhr

am 10. Januar 2024, 11:23 Uhr von PierreTombal
I wasn't real proud of my solve as the last steps I took felt like bifurcation. So I rewound to the point where it still conformed to logic and found that there really does exist a logical path that would have been a lot simpler if only I had remembered to do sudoku rather than focus so hard on the entropy rule.

-Reply: Thank you very much for solving and your comment! It's really nice to have the existence of a logical path confirmed by other solvers.

am 10. Januar 2024, 10:14 Uhr von Playmaker6174
(That aside, I actually enjoyed how much works just one 8 clue can deliver, that was mindblowing)

Zuletzt geändert am 11. Januar 2024, 14:17 Uhr

am 10. Januar 2024, 09:56 Uhr von Playmaker6174
This puzzle is so monstrously hard that it burned the entire battery of my phone and then almost half of it in the next day. Miraculous indeed but my god…

-Reply: Wow! I don't really know if I should feel sorry or proud about that. I'm overwhelmed that you take so much time to work on my puzzle. Thank you so much!

Zuletzt geändert am 11. Januar 2024, 14:11 Uhr

am 9. Januar 2024, 16:49 Uhr von h5663454
When the digits was determined through row 6, I suddenly had an idea... Is this puzzle just created by the author just to show off his skills?

p.s.: At least my current situation is: through the clues on the left side of the row 1, I have determined a few digits and the coloring distribution of boxes 1, 2 and 3.

Then, when I set my sights on the 7 on the right side of row 6, and spent a long time thinking about it, I finally had to unilaterally declare that *this puzzle can only be solved through brute force enumeration *…

-Reply: Thanks for solving the puzzle and your comment! Of course it isn't my intention to frustrate a solver with one of my puzzles. And if this was your experience I'm sorry for that.
I decided to publish this puzzle for two reasons:
1. It fascinates me that there is a unique solution for such a minimalist construction.
2. I know there are some solvers, who like very hard entropy puzzles and this puzzle felt appropriate to provide a new challenge to those.

Schwierigkeit:5
Bewertung:88 %
Gelöst:27 mal
Beobachtet:2 mal
ID:000GHN

Rätselvariante Online-Solving-Tool

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