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#1: David Bouldin (dbouldin) on Nov 16, 2011 [SPOILER]

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Elegant and sexy. :)

thanks kristen...was sexier before i had to make it solvable ;)

Wow really nice David.:)

very stylish (?)

Wow - beautiful puzzle! I did get stuck at one point and kept coming back to it to see if I could figure out any more edge logic that I missed before. I never did find it, so I made an educated guess and was right. It was fun to solve to the very end. Lovely image.

Thanks to everyone. At some point I'll post some hints.

After I did as much line logic as I could, I looked at row 2. If the 1 clue is at R2C23, this will cause R5C23 and R5C25 to be black which makes row 5 invalid. So R2C23 is a dot.

Next, if you try to complete the 3 clue in row 26 with R26C24-R26C25, then row 25 is invalid. So R26C25 is a dot. More line logic.

Next I looked at the right 2 clue in row 22. If you place it at R22C28-R22C29, then looking one move ahead, R20C28, R21C28, and R21C29 will be black. Looking a second move ahead, R20C27 is black and R21C27 and R22C27 are dots. This makes column 27 invalid. So R22C29 is a dot. A little line logic.

Next R22C28 has to be a dot with some simple edge logic. More line logic.

Next I looked at the possible ways to finish the 5 clue in column 28. No matter how this clue is finished R21C27 will always be black. More line logic.

And I think that is as far as I can get. I'm going to mark this as requires guessing for now unless someone can come up with a good way to the end.

Found to require some guessing by gator.

i honestly don't remember this one being that hard, but i test solved it for several iterations and could very well have made a lucky mistake in the last one. i'll check this one soon.

wow...ok, that was harder than i remember it being when i created it. i guess somewhere along the line i made a correct mistake and it solved out. as is, though, i think there is a chance that it is still solvable. take a look at these moves and let me know what you think:

whether the first black 1 in R24 is in C19, C21 or the black already in C23, C25R23 is black

if C19R22(& therefore 24) are black then it forms dots in C25RR22&24 violating C25, so C19R22 is a dot.

whether C18R22 or C18R23 is black C15R23 is a dot

line logic to end

(your view of that second move is going to determine if it is "guessing" or not)

i totally vote this as logically solvable
great finds, especially your first step

how do you keep track of stuff like that? i mean lets assume you suppose a certain cell to be black, and you solve out a little way from there... how do you decide to focus on any given cell to see if it will always be black or a dot, (depending on what other initial choice you assume to be black)?
specifically, how did you come to focus on c25r23 out of all the surrounding cells you could have focused on?

Sorry David, I couldn't do it, may be I made a mistake.
Bugaboo: how did you find it solvable if you don't follow ?

i followed his steps but i guess my question wasnt clear (to either you or dbouldin)

What question?

LOL

dbouldin i guess there were technically 3 questions that i asked you in comment 12 (and so you dont have to click the extra button allowing you to view previous comments i will copy and paste what i wrote here):

"how do you keep track of stuff like that? i mean lets assume you suppose a certain cell to be black, and you solve out a little way from there... how do you decide to focus on any given cell to see if it will always be black or a dot, (depending on what other initial choice you assume to be black)?
specifically, how did you come to focus on c25r23 out of all the surrounding cells you could have focused on?"

oh...THAT/those question(s)! i think you asked me something similar in another puzzle thread and i responded intending it to be a response to both. nothing special really...patience. i focus primarily on the areas where something/anything can be known and start imagining the consequences of certain if/then's for the different conditions that must be...hmmm, hard to explain. mostly it's the same as everyone else. on this puzzle i obsessed a little more than normal because it was my puzzle and the way i logically solved it before was flawed and i REALLY didn't want to post a new version.

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