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Comments on Puzzle #217: Order Out of Chaos
By Jan Wolter (jan)

peek at solution       solve puzzle
  quality:   difficulty:   solvability: line logic only  

Puzzle Description Suppressed:Click below to view spoilers

#1: Jan Wolter (jan) on May 30, 2005

This is a very hard puzzle. I know it is possible to solve by one-line-at-a-time reasoning alone, because my solver program, which only does that kind of logic, was able to solve it (I had to give it a bit of help, but that was simple line-at-a-time reasoning too). However, I had to resort to some edge logic to get it.
#2: Jan Wolter (jan) on May 30, 2005 [HINT]
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#3: Mark Conger (aruba) on Jun 3, 2005
I had to use boundary logic too.
#4: Gitte Olesen (granny40) on Nov 5, 2006 [HINT]
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#5: Arduinna (arduinna) on Feb 4, 2008 [SPOILER]
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#6: C A (nakunarimasu) on Apr 9, 2008
ohh i love that story..
#7: Marie-Louise Ambrey (marz) on Apr 27, 2008
What a challenge, I had to go and find good quality smaller puzzles that were a challenge, and voila! I found lots of your puzzles Jan, so I'm happy now :)
#8: Yulia (yug) on May 7, 2008 [SPOILER]
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#9: ErgoDyne (ergodyne) on Oct 9, 2008 [HINT] [SPOILER]
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#10: Adam Nielson (monkeyboy) on Oct 11, 2008 [HINT]
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#11: Adam Nielson (monkeyboy) on Jun 12, 2009
Second time around, still just as fun. Ditto #2.
#12: Byrdie (byrdie) on Oct 22, 2009 [HINT]
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#13: Gator (Gator) on Dec 7, 2010 [HINT]
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#14: Renee Hott (Renee) on Oct 16, 2012 [SPOILER]
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#16: Susan (Susan) on Jul 15, 2017 [HINT] [SPOILER]
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#17: JoyLonon (Esljoy) on Feb 23, 2022 [HINT]
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#18: Joe (infrapinklizzard) on Feb 23, 2022
There is no "symmetry logic". That is guessing.

If the entire puzzle is symmetrical, and there is only one solution, then you could use symmetry as a solving technique, but unique solutions are not a guarantee on this site.

And, more importantly, this entire puzzle is not symmetrical.
#19: Gator (gator) on Feb 24, 2022 [HINT]
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