dailysudoku.com

TerenceF · Joined: 21 Dec 2007 Posts: 26 Location: Takapuna, NZ

From exactly the same point as Clement there is a 157 XY wing pivoted on r9c6 which eliminates the 5 from r6c4, also making r6c5<>3 leading to the same outcome.

Clement · Posted: Thu Jan 15, 2015 2:29 pm Post subject: Jan 15 VH

I feel BUG+2 to be the simplest
5r6c5=3r2c5
5r1c4=3r2c5 so, r2c5=3.

rmireland · Joined: 21 Sep 2013 Posts: 33 Location: New Orleans

More and more lately I have been using the "Fishy" xy with these VH puzzles. Today I used the Fishy 135 xy pivoted in r1c8, with pincers at r2c9 and r1c2, to eliminate the 5 in r2c5. With stte, I never look back (until someone posts a real answer), but these Fishies do solve it about half the time. -Rick

dongrave · Joined: 06 Mar 2014 Posts: 568

Hi Clement, Marty told me a long time ago that w-wings, BUG+2, UR's, skyscrapers, jellyfish, etc. are not considered 'standard advanced moves' for this site. He told me that every VH on this site can be solved using just x-wings, xy-wings, and xyz-wings and since that's the case, that's the solution that I always look for and consider it to be the 'official' solution.

Clement · Posted: Thu Jan 15, 2015 9:21 pm Post subject:

Dongrave, I just wanted a change for a while. But what is important I think is a logical move to the solution.

dongrave · Joined: 06 Mar 2014 Posts: 568

Hi Clement, I didn't make myself clear. I always enjoy checking out the single-step solutions that you and Dan and Marty and all the others post. I was just giving my opinion as to which solution I thought should be the site's 'official' solution. Don.

RobertRattley · Joined: 24 Jun 2007 Posts: 118 Location: Australia

I've known for a long time that all VH puzzles on this site can be expected to be solvable (and so far always have been) with x, xy or xyz wings, and I seek solutions accordingly. That is simply my preference.

But I do not see this as "official". If anything, it would be a limitation that this site imposes on itself.

I've also been wondering (for years) if this site will ever expand to a new category "extra hard" or similar, for puzzles that even x, xy or xyz wings can't solve. Will it ever happen, does anybody know?

Marty R. · Posted: Sat Jan 31, 2015 4:55 pm Post subject:

Robert, it is extremely unlikely that that will happen. The site's owner says he doesn't have time to devote to the site. He has been an absentee owner for a number of years now.

dongrave · Joined: 06 Mar 2014 Posts: 568

Marty R. · Posted: Tue Feb 03, 2015 3:15 am Post subject:

He used the Ur because he failed to see the wing. I always prefer to solve these using the standard VH moves, but I'm having some difficulty grasping the concept of an "official" solution. Maybe what you mean by "official" solution could alternatively be called "standard" solution.

dongrave · Joined: 06 Mar 2014 Posts: 568

That's it! You've got it Marty! I've been saying 'official solution' over and over but 'standard solution' is much better! (Seems obvious now.) I guess a solution using just 'standard moves' would surely be best described as a 'standard solution', wouldn't it? That's perfect!