peek at solution solve puzzle
quality: difficulty: solvability: moderate lookahead
Puzzle Description Suppressed:Click below to view spoilers
#1: Joe (infrapinklizzard) on Sep 8, 2013 [HINT]
A little edge logic on the 10 in c1 to eliminate r1-2 is all that's needed apart from line logic.#2: annalivia (annalivia) on Sep 8, 2013 [SPOILER]
Comment Suppressed:Click below to view spoilers#3: Thomas Genuine (Genuine) on Sep 9, 2013
Why is it 70s?#4: Tom O'Connell (sensei69) on Sep 9, 2013
:) bak @ ya#5: David Bouldin (dbouldin) on Sep 9, 2013 [HINT]
nice puzzle joe :)#6: Norma Dee (norm0908) on Sep 9, 2013
...alternatively, if you EL dot just C1R20, then it's LL from there also. that's half the amount of edge logic you describe ;P
I really feel dumb, but what am I supposed to see? lol#7: Kristen Vognild (Kristen) on Sep 10, 2013 [SPOILER]
Comment Suppressed:Click below to view spoilers#8: Norma Dee (norm0908) on Sep 10, 2013
Now I feel even dumber. Now that I know what it is. Neat puzzle.#9: Joe (infrapinklizzard) on Sep 10, 2013 [SPOILER]
Comment Suppressed:Click below to view spoilers#10: Web Paint-By-Number Robot (webpbn) on Sep 10, 2013
Found to be solvable with moderate lookahead by infrapinklizzard.#11: Joe (infrapinklizzard) on Sep 10, 2013 [HINT]
And I forgot to rate the solvability - oops.#12: David Bouldin (dbouldin) on Sep 10, 2013
David - I realize you're being facetious, but it raises an interesting point. bugaboo would often put the bare minimum of pixels needed as well. What I did here was to put what I saw as the first piece of edge logic I did.
There are at least two ways to do edge logic - piecemeal or positionally, and holistically.
The first way is to place the clue in each possible position and to rule out each one as you go. This would give you a maximum of one pixel ruled out at a time -- a piecemeal approach.
[In this case, you'd hypothetically start the 10 in r1 and realise that there'd be a conflict in c2r3 and so rule out r1c1. You could then continue on to rule out r2, but you don't need to in order to finish with just line logic.]
The second way is the way I tend to think. It uses the content of the comparison row to quickly locate places where the placement row cannot go. This really doesn't have a maximum pixel count, as you can rule out large swathes if the comparison clue cannot fit (eg if there's lots of alternating 1s and non-1s crossing a long clue).
[In this case, since there is a 9 in c2, the 10 in c1 cannot reach above r3 without creating a too-short block in c2. Therefore everything above r3 (ie c1r1-2) is white.]
so what you're saying is....i win?#13: Joe (infrapinklizzard) on Sep 10, 2013
with sprinkles on top#14: Kurt Kowalczyk (bahabro) on Sep 10, 2013
cool! neat puzz#15: David Bouldin (dbouldin) on Sep 11, 2013
hahahaha @ 12/13
hmm...sprinkles on top usually make my puzzles have multiple solutions :(#16: Joe (infrapinklizzard) on Sep 11, 2013
That's why you can't see the top here. :D#17: Tom King (sgusa) on Jul 15, 2014
Fun puzz, Joe! Congratulations for the sprinkles, David.#18: BlackCat (BlackCat) on Dec 14, 2017
Took a bit to see. Fun solve.
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