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#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.

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Why is it 70s?

:) bak @ ya

nice puzzle joe :)

...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

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Now I feel even dumber. Now that I know what it is. Neat puzzle.

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Found to be solvable with moderate lookahead by infrapinklizzard.

And I forgot to rate the solvability - oops.

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?

with sprinkles on top

cool! neat puzz


hahahaha @ 12/13

hmm...sprinkles on top usually make my puzzles have multiple solutions :(

That's why you can't see the top here. :D

Fun puzz, Joe! Congratulations for the sprinkles, David.

Took a bit to see. Fun solve.

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