dailysudoku.com

Not exactly. R9c2 and r8c8 are pincer cells. The eliminations are r8c3,r9c8<>8.

Ahhh, I did not see r9c8, but just removing the 8 from r8c3 is enough to complete the puzzle ... and I included ...

XY-Wing 79-8, pivot R8C1; R9C2 & R8C8; R8C3 <> 8?

You can find the explanation at http://www.sudopedia.org/index.php/Eureka

FYI, that link is no longer ... I had to go to a mirror site, located at:
http://sudopedia.enjoysudoku.com/

The notation we are using in this forum is known as a The Eureka notation. It is a compact method to write Alternating Inference Chains.

Thanks Clement!

That's not standard notation. It's his way of telling us without using the standard notation.

Thanks Marty ... OK, I guess what I am asking is where can I learn the standard notation to start out w ...

Where can I find help on the notation you are using to describe haow you are solving these puzzles:

Not sure how to read this:
W-Wing{(46)r1c1.r4c3, 4C2} -> -{6r3c3, 6r4c1}; stte

or how to w ...

Used only basics only on this ...

I propose that we devise a standard that we can all agree as the categories for these puzzles. I found the following categories on another site and thought we cou ...

I, too, only used simple methods throughout the entire puzzle!

I wouldn't classify one triple in the entire puzzle as making it hard. Maybe medium then? There are many discussions on how to rate the difficulty of a Sudoku puzzle and I believe that this would fall ...

Hmmm, I placed, in the following order, 7, 2, 4, 6, 5, 8, 5, 6, 4, 6, 2, 9. This left me with 1-8, 1-8-9, 1-8-9 in the upper left box, which allowed me to place the 7, and clean up the rest of the pu ...

Not hard at all ... should be classified as easy.

If you want, at minimum, I suppose you could call it medium difficulty.