Puzzle Description:

We sell sporting goods on the internet and ship around the world (nothing like a shameless plug...)

#1: David Bouldin (dbouldin) on Dec 8, 2011 [HINT]

red question mark? looks like this puzzle is in need of some hints (assume line logic between each step below):

- EL in C20 to dot C20R5-12,19-20
- EL in C1 to dot C1R1-3,11-13
- EL in R1 to dot C2,3,9R1
- whether C2R14 or C2R20 are black, C1R15 is black
- EL in R20 to black C15,16R20
- whether C12R20 or C17R20 are black, C11R18 is black
- whether C16R6 or C19R6 are black, C16R7 is a dot
- if C16,17R2 are both black, C19 is violated, so dot them
- EL in C20 to dot C20R18
- LL to finish

nice challenge!

Thanks, David. It took 33 times to make it a decent image and solvable.

Cool Tom, like it very much, no guessing, fun challenge! Thank you :)

I hope business is as good as this puzzle Tom.:)

Mal: "How's business?"
Inara: "None of yours."

:) @ kristen. reminds me of something i just saw that said "hey, i found your nose...it was in my business again."

excellent study in edge logic :)

be careful with your coordinates dbouldin (in your 7th step i think you meant c16r7 is a dot instead of c16r17)

that's possible bug...of course they're just hints, this way i don't give it all away ;P
(fixing it)

"- whether C12R20 or C17R20 are black, C11R18 is black"

Instead of this step (as it verged on 3 moved ahead), I like:
if the 6 clue extends to R20C11-R20C12, this makes row 18 invalid (no place to put the 2 clue). So R20C17 must be black.

"- EL in C20 to dot C20R18"

I also don't understand how this one helps, but how about either R17C18 or R18C18 will be a dot, so R17C20 has to be black.

I'm still not done as I do not have R18C20 a dot like you did, but I cannot see how to make it a dot.

Couldn't get this one at all.

Found to be solvable with moderate lookahead by gator.

I still can't see David's last step, but how about this:

R14C1-2 are going to be either both black or both dots. They cannot be one of each. Remember that and we will get back to that.

Assume the bottom 2 clue in C10 goes in R19-20C10. We are going to now see how this affects R14C1-2.

Given that R19C10 is black, then R19C1 is black, and R14C1 is a dot.

Given that R20C10 is black, then R20C2 is a dot, and R14C2 is black.

Since we already know that R14C1-2 cannot be one of each, the 2 clue cannot go in R19-20C10. These have to be dots.

It will solve with LL from there.

Given that is a lot to keep in your head, I'm tempted to mark this as deep lookahead; however, each step outlined is only looking 2 moves ahead. So I'll mark this as moderate for now.

David - if you can explain your last step, I really would like to hear it. I feel like I'm missing something obvious...

Nice job. No guessing. Nice images for so small a puzzle.

Wait, are you StealthGearUSA? Do you sell accessories for guns? How is that "sporting goods?"

I seem to remember him talking about skiing and golf equipment among other things, but I don't remember ever seeing a website. Here's my guess:
http://stores.ebay.com/Sporting-Goods-USA

Although it was fairly hard for a puzzle this size, I really enjoyed this one!

Goto next topic

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