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#1: Gator (Gator) on Feb 18, 2010 [HINT]

The bottom 20 rows solve without a problem (with the exception of 1 cell). I cannot find a good way to tackle the top 10. I can visually see how it is supposed to be filled in, but I do not see a logical way to do it. I would call this one guessing.

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Ditto #1.

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In your comments above, it should be columns 10, 11, and 12.

I had done what you have described above to conclude that R11C10 is a dot, which then lets you fill in R11C12, and then put more dots in column 12. But R12C10 and R12C12 have still not been resolved with the above logic. The 1 clue in column 10 can still go in rows 1, 3, 5, 7, and 12. The 2 clue in column 12 can still be finished with R10C12 or R12C12.

Oops, I was thinking like a programmer and started with column 0.

That 1 can be located definitely.

My step-by-step of the non-line logic (with real pictures) (and the *correct* row and column numbers) is at: http://infrapinklizzard.deviantart.com/art/Logic-7854-154774911

Very good! Thanks for explaining the logic.

Found to be logically solvable by Gator.

Ditto #7. I LOVE how we can all see, step by step (with a visible clear image) of how things work in solving this logically. I wish we could all post links like this.

Thank you.

All it takes is Paintshop Pro and several hours of potential puzzle-making time. :(

Actually, it's fun in its own way. It makes you think clearly about your methods.

(Oh, and I have to add to Joe: we Joes have to stick together!)

I don't have "several hours of potential puzzle-making time,"

LOL

(snicker snicker)

Joe, thanks for the assistance. I met you at the "impasse" and you helped me get over that spot. Before I checked the comments, I had to guess, but your notes show the logical solve nicely.

Oh, and nice puzzle, Joe (the other one). :-)

Rowing?

I'm sure glad Joe's link to how to solve this puzzle is still live. The method is ingenious. And I needed it, I was stuck and stumped.

In case the link ever goes down, the secret is to test, one by one, and prove the following 4 squares cannot be black. Testing each of the 4 squares, edge logic in columns 12 through 8 causes a contradiction. The 4 specific squares to test are all in column 10:
R1C10
R3C10
R5C10
R7C10
What a great puzzle!

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