Puzzle Description Suppressed:Click below to view spoilers

#1: Gator (Gator) on Oct 29, 2009 [HINT]

Nice logic.

Here is one part that goes a little deeper. After doing all the edge logic you can and one instance of two way logic, it appears that you will be stuck (unless I'm missing more edge logic somewhere). In column 9, you should have 2 of the 5 cells filled in (plus the 3 clue already done). If you look at row 3, you will notice that if R3C9 is filled in, then R3C8 and R3C10 will have to be dots.

Now try to complete the 5 clue in column 9 by filling in rows 1-3. This causes R3C8 to be a dot. If you look at rows 1, you have to fill in R1C8 or R1C10. Likewise for row 2, you would have to fill in R2C8 or R2C10. Given that R3C8 will already be a dot, you cannot fill in R1C8 or R2C8 as this would make column 8 invalid. Likewise in column 10, you cannot fill in both R1C10 and R2C10.

So filling in R1C9 causes a contradiction for all resulting possibilities. So R1C9 is a dot.

Once you have this, the rest of the puzzle solves normally.

I got to about the same point, but could find nothing else. Your logical reasoning seems a bit of a stretch.

That's the reason I haven't marked this as solvable by logic yet. I think it may be more than what we usually allow to "keep in our head" to be considered logically solvable.

I'll visit this one later to make sure I didn't miss any edge logic too.

I got stuck at the same place as Gator. I buy his logic, but that's definitely a couple more levels of look-ahead than we normally allow. I couldn't find anything else though.

Looks like Ohio.

New version published by conzick.

This is solvable without guessing.
But you see in version 1 that guessing is not guessing every time. is ist possible to find a definition?

Found to be logically solvable by Gator.

This version is a little easier. I used edge logic. I also used two way logic with R3C16. Towards the end, I also tried to fill in R3C1 to find this would cause a contradiction in C3. Very nice training puzzle.

What is it that all of a sudden we are getting no-image puzzles. Part of the fun of solving the puzzle is finding the image.

improving your skills is important to solve puzzles with nice images.

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I'm sorry but I'm getting tired of these things.

requires lots of guessing.

I find that since Kai set out to make a puzzle that improves edge logic skills, and not focus so much on the image, he achieved his objective. For that, I rate it a 3 in quality, as opposed to anything lower. However, in all fairness, since Kai purposefully left out part of what can make a puzzle enjoyable, I cannot rate it higher. It just looks like a scribble. That is not to say I did not enjoy solving this one. It's just that there is only joy in solving and nothing else. I suppose if there was some sort of discernable artist intent, I could look for that and appreciate it. But as a solver I appreciate that you accomplished your objective.

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Solved using logic only, no guessing required.

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