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Comments on Puzzle #22421: This puzzle is DUMB!
By Brian Bellis (mootpoint)

peek at solution       solve puzzle
  quality:   difficulty:   solvability: moderate lookahead  

Puzzle Description Suppressed:Click below to view spoilers

#1: Tom O'Connell (sensei69) on Aug 3, 2013 [HINT]

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#2: Kai-Uwe Zickerick (conzick) on Aug 3, 2013
For me it is not solvable without guessing.
#3: Ruby Hammer (rubyqhammer) on Aug 3, 2013
I solved it without guessing. I took the 9 in c5 and used edge logic to eliminate most of the squares in that column. After that, the rest was fairly simple. Thanks.
#4: Joe (infrapinklizzard) on Aug 3, 2013 [HINT]
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#5: Web Paint-By-Number Robot (webpbn) on Aug 3, 2013
Found to be solvable with deep lookahead by infrapinklizzard.
#6: Joe (infrapinklizzard) on Aug 3, 2013 [HINT]
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#7: Joshua (jag) on Aug 3, 2013 [HINT]
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#8: turous (turous) on Aug 4, 2013 [HINT]
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#9: Joe (infrapinklizzard) on Aug 4, 2013 [HINT]
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#10: Kristen Vognild (Kristen) on Aug 4, 2013 [HINT]
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#11: Joe (infrapinklizzard) on Aug 4, 2013 [HINT]
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#12: Kristen Vognild (Kristen) on Aug 4, 2013
Yeah, I had to save and revert, but I can see it as deep lookahead; perhaps *someone* can keep all of those steps in their head.
#13: turous (turous) on Aug 7, 2013 [HINT]
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#14: Joe (infrapinklizzard) on Aug 7, 2013
No, and there may not be one. However, nonexistent proof is not proof of nonexistence. The burden on a logical solver is to prove it, and we don't have proof for that assertion.

I would be very interested in a proof if you have one.
#15: David Bouldin (dbouldin) on Aug 14, 2013 [HINT]
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#16: Joe (infrapinklizzard) on Aug 14, 2013
Sheesh, moderate lookahead it is! -- but good luck finding it!

This is one where the moderate lookahead label is a teaser. (Of course, I've been guilty of a few of those, too.)
#17: Web Paint-By-Number Robot (webpbn) on Aug 14, 2013
Found to be solvable with moderate lookahead by infrapinklizzard.
#18: David Bouldin (dbouldin) on Aug 14, 2013
"Sheesh"?
I wasn't trying to convince you one way or the other Joe ;)
#19: Joe (infrapinklizzard) on Aug 14, 2013
Maybe "Yikes!" is a better phrasing?
#20: Jill Tallmer (Yidl) on Jun 13, 2016
This came out so smoothly after a little guess ("9s don't extend to the edge") that I forgot I had guessed at all.
#21: BlackCat (BlackCat) on Jun 27, 2016
Decided to accept the author's opinion and did not solve.
#22: BlackCat (BlackCat) on Jun 27, 2016
Decided to accept the author's opinion and did not solve.
#23: Gary Calvin (garycalvin) on Jul 3, 2017 [HINT]
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#24: Eric (kelalatir) on Aug 5, 2020 [HINT]
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