Puzzle Description:

Big Boy

#1: Liz P (Lizteach) on Sep 23, 2010 [HINT] [SPOILER]

Funny and solvable. (Some two-way logic around the "Y" did it for me.)

I got it solved but couldn't come up with the restaurant. Perhaps another local one? Nice series Ron

Marc's Bog Boy. I remember a rubber boy in a red checked outfit, holding a plate with a hamburger in one hand as a bank.

See www.bigboy.com

Here in the West it's "Bob's Big Boy".

Liz - can you explain how you did the 2-way logic around the "Y"? I'm having trouble seeing it.

Okay, Gator, I'm working on it again as I type this. I always get confused about the names of logic, so maybe it's more internal edge logic? But I'll try to explain what I did. I'm using purple logic as a shortcut to speed things up a bit.

So once we've solved the red and the blue, with the black pixels, purple logic will only take us to a certain point. Look at the 4 pixels in C17 from R4-R7. Now, there are only a few places we can put the row of 3 black in R4. But no matter where we put it, there has to be a dot in C17, R3, because of the placement of the 2s in R3. That was the trickiest thing for me to figure out.

That dot means that the column of 7 in C17 has to extend from R4 to R10.

Purple logic takes over again for a while until another point, at which it doesn't seem to understand that there are only 1s in rows 7 and 8. So we can place dots in C18, R7 and 8, and then 9.

Purple logic also doesn't seem to recognize that R3, C10 should be black, but it should. Further, there has to be a dot in R1, C13, because edge logic dictates that R1, C18 AND R1, C20 cannot *both* be black.

I think after that, purple logic should take you the rest of the way.

Please let me know whether I didn't explain this well enough...I'm much better at solving than I am at explaining how I solved it! (Never was much of a "show your work" type, much to my math teachers' dismay.)

Liz, same as you, until paragraph 5. Your r3c10 should be r3c15.
Then I don't agree with your next statement. (R1c13 *is* white, but from the evidence you've given, it could still be the left 1 in r1.)

However, your statement that due to edge logic, only the right 1 in r1 can fit in c18-20 does mean that r1c10&11 are black and from there it solves with purple logic.

PS. I've started a meme!

You're right, Joe; I got the columns wrong in paragraph 5. It was late when I was typing that!

And my explanation was poor about R1C13, but I think I meant the same thing as you said (and I am not about to try to solve it again to figure out whether that is indeed what I meant, lol).

I like the purple logic meme, because even though I try to avoid hitting the L key unless I am really and truly stuck, it is useful when explaining a solution.

I am saved from that temptation by using Firefox. L only works on my own puzzles and ones I've already solved.

I looked at your explanation and saw what you meant, but felt you didn't need to go that far ahead to get to line logic.

I must admit, I was a little disappointed that I wasn't the first to find the delicious two-way logic atop the 7.

Goto next topic

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