Puzzle Description:

(This puzzle was recovered from the 2016 database crash. Description not available.)

#1: Web Paint-By-Number Robot (webpbn) on Dec 11, 2018       classify

Found to have a unique solution by infrapinklizzard.

Found to be solvable with moderate lookahead by infrapinklizzard.

After line logic runs out,

Two-way logic on the 2 in c8: whether it goes up or down, c7r9 will be black

LL (don't forget that c7r11 must be white)

Extended edge logic on the 2 in c6 -
If it were in r11-12, then
> c7 r12 would be white
> c6r10 would be white, making c7r10 black
= which would create a conflict in c7 (there would be no room for the 1). Since our assumption was impossible, c6r12 must be white.

LL to finish

I enjoyed this one. I'm a pistachio fan myself.

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