peek at solution solve puzzle
quality: difficulty: solvability: moderate lookahead
Puzzle Description:
(This puzzle was recovered from the 2016 database crash. Puzzle creators, please edit this puzzle and put the real description here!)
#1: Brian Bellis (mootpoint) on Oct 8, 2018
I think this was me jumping onto the 8x8 puzzle bandwagon.#2: Jota (jota) on Feb 5, 2019
That clears it!#3: Kristen Vognild (kristen) on Feb 7, 2019
Looks like it! So you didn't start this particular trend, but it's usually safe to blame you for these. :)#4: Web Paint-By-Number Robot (webpbn) on Mar 15, 2019
Found to have a unique solution by infrapinklizzard.#5: Web Paint-By-Number Robot (webpbn) on Mar 15, 2019
Found to be solvable with moderate lookahead by infrapinklizzard.#6: Joe (infrapinklizzard) on Mar 15, 2019 [HINT]
This is actually pretty tricky.#7: Andrew Schultz (blurglecruncheon) on Feb 1, 2023 [SPOILER]
After LL gets only six black, and a bunch of white,
Extended edge logic 2 c1:
Its range is [r1-4]. If it were in r3-4 then
> c1r5 would be white and c2r4 would be black
> which would make c2r5 white
= which would not leave enough room for the 1,1 in r5
So the 2 cannot be in r4 and the range is limited to [r1-3] making c1r2 black.
LL
Extended EL 3 c1:
Its range is [r4-8]. If it were in r4-6 then
> c1r3 would be white and c2r4-5 would be black
> which would make c2r3 white
= which would not leave enough room for the 1,1 in r3
So the 2 cannot be in r4 and the range is limited to [r5-8] making c1r7 black.
LL to finish
A very meta puzzle! I didn't get it until I looked at the comments, but when I did, I laughed. I thought 8x was maybe a reference to 10x software engineers at first.
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