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JPF # 51 # 80 -- Hard

 
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Pat



Joined: 23 Feb 2010
Posts: 182

PostPosted: Tue Oct 18, 2011 8:06 am    Post subject: JPF # 51 # 80 -- Hard Reply with quote


          {
          edit:

            original subject-line was
              XM ( puzzle from JPF )

            now revised to
              JPF # 51 # 80 -- Hard

            thanks to comment from keith
          }

arkietech wrote:
Back to basics a good VH

sorry i don't really know the grading used on this forum

the following puzzle is Extra Medium
( i.e. mediumer than Very Medium,
but not quite as medium as Ultra Medium )

1....2.3...45..6...7..6...8.1.....5...7.9...46.....1...2...48..7..2....5..8.7..9.
# JPF # 51 # 80

Code:

 1 . . | . . 2 | . 3 .
 . . 4 | 5 . . | 6 . .
 . 7 . | . 6 . | . . 8
-------+-------+------
 . 1 . | . . . | . 5 .
 . . 7 | . 9 . | . . 4
 6 . . | . . . | 1 . .
-------+-------+------
 . 2 . | . . 4 | 8 . .
 7 . . | 2 . . | . . 5
 . . 8 | . 7 . | . 9 .



Last edited by Pat on Fri Oct 21, 2011 6:23 am; edited 1 time in total
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keith



Joined: 19 Sep 2005
Posts: 3340
Location: near Detroit, Michigan, USA

PostPosted: Tue Oct 18, 2011 8:15 am    Post subject: Reply with quote

Pat,

I think this one qualifies as a Hard, but beware! By this site's standards, a Hard involves a hidden set. A Very Hard involves an X-, XY, or XYZ- wing.

Keith
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Pat



Joined: 23 Feb 2010
Posts: 182

PostPosted: Tue Oct 18, 2011 8:42 am    Post subject: Reply with quote


    thanks

      i'm trying to say,
      this puzzle is too easy for the experts

        also trying to avoid a spoiler,
        for those like myself
        who do enjoy this level
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Pat



Joined: 23 Feb 2010
Posts: 182

PostPosted: Tue Oct 18, 2011 8:45 am    Post subject: Reply with quote

keith wrote:

  • Hard involves a hidden set
  • Very Hard involves an X-, XY, or XYZ- wing

so an X-wing is tougher than a "hidden" trio ?
tougher even than a "hidden" quartet ?
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arkietech



Joined: 31 Jul 2008
Posts: 1828
Location: Northwest Arkansas USA

PostPosted: Tue Oct 18, 2011 10:25 am    Post subject: Re: XM ( puzzle from JPF ) Reply with quote

Pat wrote:
arkietech wrote:
Back to basics a good VH

sorry i don't really know the grading used on this forum

I guess I don't know the grading either Confused

This was written after struggling with some puzzles requiring multiple AIC (alternate inference chains)

VH to me requires advanced methods but not chains or almost things some with fins.

to others they limit VH to X-, XY, or XYZ- wings ( I guess that includes the various fish models, kites and skyscrapers but does not include the other wings (m-wing w-wing etc.)

Where the bugs and remote pairs and patterns fit is a mystery.

Hard puzzles are limited to the basics (not advanced) including quads.
Medium no trips or quads
Easy has no sets

To me quads, trips and naked singles are hard. Harder than many advanced moves

Sorry if I mislead anyone.
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Pat



Joined: 23 Feb 2010
Posts: 182

PostPosted: Tue Oct 18, 2011 10:43 am    Post subject: ~[ ;- )= Reply with quote


    so JPF's puzzle is Hard
    ( and not any level of Medium )

      i apologize !!
      wasn't trying to confuse anyone
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arkietech



Joined: 31 Jul 2008
Posts: 1828
Location: Northwest Arkansas USA

PostPosted: Tue Oct 18, 2011 11:23 am    Post subject: Re: ~[ ;- )= Reply with quote

Pat wrote:
[list]
so JPF's puzzle is Hard

Yes -- Interesting in that you need a triple to even get started. Cool
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keith



Joined: 19 Sep 2005
Posts: 3340
Location: near Detroit, Michigan, USA

PostPosted: Tue Oct 18, 2011 2:15 pm    Post subject: Reply with quote

Pat wrote:
keith wrote:

  • Hard involves a hidden set
  • Very Hard involves an X-, XY, or XYZ- wing

so an X-wing is tougher than a "hidden" trio ?
tougher even than a "hidden" quartet ?


I didn't decide on the scale, but yes. "Very Hard" for the puzzles on this site means it requires a basic wing, no more.

Keith
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arkietech



Joined: 31 Jul 2008
Posts: 1828
Location: Northwest Arkansas USA

PostPosted: Tue Oct 18, 2011 2:45 pm    Post subject: Reply with quote

keith wrote:
I didn't decide on the scale, but yes. "Very Hard" for the puzzles on this site means it requires a basic wing, no more.

I will start using RH for real hard. Embarassed
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keith



Joined: 19 Sep 2005
Posts: 3340
Location: near Detroit, Michigan, USA

PostPosted: Tue Oct 18, 2011 4:16 pm    Post subject: Reply with quote

I have used "extreme basics" in the past.

Keith Razz
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arkietech



Joined: 31 Jul 2008
Posts: 1828
Location: Northwest Arkansas USA

PostPosted: Tue Oct 18, 2011 4:26 pm    Post subject: Reply with quote

keith wrote:
I have used "extreme basics" in the past.

Keith Razz


I use "Extreme" or "EH Extremely Hard" for anything goes!
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Pat



Joined: 23 Feb 2010
Posts: 182

PostPosted: Fri Oct 21, 2011 6:14 am    Post subject: Reply with quote

arkietech wrote:
Interesting in that you need a triple to even get started.

even more unusual, that you'll also need a 2nd triple


{edit:}
some better puzzles:
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