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Comments on Puzzle #19003: Obeying Lightning Seeds
By David Bouldin (dbouldin)

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

Puzzle Description Suppressed:Click below to view spoilers

#1: David Bouldin (dbouldin) on Aug 2, 2012 [SPOILER]

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#2: Gator (gator) on Aug 2, 2012 [HINT]
After the initial line/color logic, simple edge logic on the 7 clue in column 20. And then I'm not sure how to finish it.

David - what is the next advance step?
#3: David Bouldin (dbouldin) on Aug 2, 2012 [HINT]
C13R16 and C15R16 can't both be black, so C11R16 has to be black.
#4: Tom O'Connell (sensei69) on Aug 2, 2012 [HINT]
why can't both be black, David?
#5: David Bouldin (dbouldin) on Aug 2, 2012 [HINT]
they would violate R20.

you can look at it from R20 as two-way logic with dots if you'd prefer.
#6: Kurt Kowalczyk (bahabro) on Aug 2, 2012
yep, david's right, and it's completely solvable by logic. I scratched my head for close to 15 mins before seeing it. good puzzle, david!
#7: Web Paint-By-Number Robot (webpbn) on Aug 2, 2012
Found to be solvable with moderate lookahead by gator.
#8: Gator (gator) on Aug 2, 2012
Thank you sir - marked as solvable now. :)
#9: David Bouldin (dbouldin) on Aug 2, 2012
thanks all.
#10: Gator (gator) on Aug 2, 2012 [SPOILER]
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#11: David Bouldin (dbouldin) on Aug 2, 2012 [SPOILER]
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#12: Tom O'Connell (sensei69) on Aug 2, 2012
got it now David...thx for the lesson
#13: Susan Duncan (medic25733) on Aug 6, 2012
Neat
#14: valerie o..travis (bigblue) on Aug 18, 2012
i like it :)
#15: David Bouldin (dbouldin) on Aug 18, 2012
thanks all
#16: David Bouldin (dbouldin) on Jul 10, 2023 [SPOILER]
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