Puzzle Description:

#1: Liz P (Lizteach) on Aug 20, 2010 [HINT] [SPOILER]

It's a baseball headed at a Jack-in-the-Box?

Some extended smile logic was needed, but it was logically solvable.

Definitely logically solvable - and I agree with Liz, a very good example of smile logic to finish up the last couple areas.

When you refer to "extended smile logic", it seems more like you are making an educated guess based on the clues since they are symmetrical. But these can be broken down into smaller bit size pieces.

Towards the end of the puzzle, I used smile logic twice to form the stripes of the baseball. I also used smile logic on the top and bottom parts of the black part of the baseball.

Now the only thing left are the red clues in rows 16-22 and columns 13-20.

I then used some affirmation logic (in other words, exhausting the possibilities and seeing what is in common) on row 22. Notice that no matter where you place the 3 clue R21C13 and R21C20 will always be dots. The same logic can be done with row 16 to see that R17C13 and R17C20 are dots.

Line logic will then finish it out.

Found to be logically solvable by Gator.

Perhaps extended smile logic was not what I meant, Gator, because I didn't guess. I was talking about the baseball, which seemed a little more complicated than just a simple smile. For the other tricky part, I used the affirmation logic (I keep forgetting the name of that one).

That was not a terribly intricate example of affirmation logic, (sometimes I've gone a few moves ahead to find an opening, which feels more like trial and error than logic). but it makes me wonder: does the checker with the puzzle creator "understand" affirmation logic? I know that the purple logic doesn't see it.

No, the checker just understands if it is unique and secondly if it only requires line/color logic to solve. The checker doesn't know how to do smile, edge, contradiction, two-way, affirmation, or summing logic.

Whatever kind of logic it is called, it was lots of fun to solve. I had to laugh at Liz's interpretation, but I have to agree with her. :-D

exactly teresa, whatever logic,i solved my 1600th puzzle on this site ... thx Ron

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