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Comments on Puzzle #31224: One letter off 7
By Ron Jacobson (shmily999)

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

Puzzle Description Suppressed:Click below to view spoilers

#1: Kristen Vognild (kristen) on May 16, 2018 [SPOILER]

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#2: Norma Dee (norm0908) on May 16, 2018
feat and feet?
#3: Bill Eisenmann (Bullet) on May 17, 2018 [SPOILER]
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#4: Jennifer McMahon (kalamalama) on May 17, 2018 [SPOILER]
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#5: Susan Eberhardt (susaneber) on May 17, 2018 [SPOILER]
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#6: Ron Jacobson (shmily999) on May 17, 2018 [SPOILER]
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#7: Kristen Vognild (kristen) on May 18, 2018
That makes sense. Darned socks were a bit of a stretch. :)
#8: Koreen (mom24plus) on May 19, 2018
sorry. that looked to me like a red jello cake and two hands either refusing it or shoving it, but I still would have gone with cake take, LOL
#9: Brian Bellis (mootpoint) on May 20, 2018
I hate when my socks get stretched.
#10: Kristen Vognild (kristen) on May 21, 2018
They never fit right, afterward.
#11: Joe (infrapinklizzard) on May 24, 2018
Well, on the bright side, at least you have socks for your left foot.
#12: Joe (infrapinklizzard) on May 24, 2018 [HINT]
ll
el 7 c40 = r1-4, r14 w
ll
el 5 c28 = r1, r12-14 w
ll
no matter where the 5 in c28 goes, c29r4-5 will be white.

And that's all the moderate lookahead I can find.
For deep lookahead,
If the 5 in c28 were to go in r2-6,
> the 2|3 in r2-3 would trigger the 2 in c30 and force it down into r4
> which would trigger the 2 in r4 and force it right
> which would trigger the 5 in c31 and force it down (into r4-8)
= which runs into the pixel in r9 making the block too long.
Since we've run into a conflict, our original posit is wrong and so c28r2 must be white.

ll to finish
#13: Web Paint-By-Number Robot (webpbn) on May 24, 2018
Found to be solvable with deep lookahead by infrapinklizzard.

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