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May 10 VH

 
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kuskey



Joined: 10 Dec 2008
Posts: 127
Location: Pembroke, NH

PostPosted: Tue May 10, 2011 5:00 am    Post subject: May 10 VH Reply with quote

Kinda messy but it works - a 3-stepper:
1.X-wing on 8 in c38 setting r1c38<>8
2.457 XYZ-wing pivot at r1c3 setting r1c1<>4
3.a type 3 (?) UR in 45 in c35.Either r1c3 or r3c3 must be <5> setting r1c3 and r3c3<>4.
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prakash



Joined: 02 Jan 2008
Posts: 67
Location: New Jersey, USA

PostPosted: Tue May 10, 2011 10:40 am    Post subject: Reply with quote

As kuskey pointed out, this was a messy one. After the XYZ wing, you can do to X wings on 1 and 7. this reduces the UR to a type 1 ..... Not that it matters .... A UR is a UR!
-PJ


Last edited by prakash on Tue May 10, 2011 10:45 am; edited 1 time in total
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George Woods



Joined: 28 Mar 2006
Posts: 234
Location: Dorset UK

PostPosted: Tue May 10, 2011 10:42 am    Post subject: Reply with quote

I agree. It was kinda messy for me. After the X wing on 8 and the XYZ 457 . I looked at r1c1 If 7 then r2c7 =7 or if 8 then r3c8=8 and after further elementary work in box 9 r2c7 becomes 7 again So r2c7 =7. After solving it was quite tricky remembering what the key moves were. Thus after the XYZ r5c1 = 4 but this leads no further (for me), and I don't like Urs

As I predicted above I had forgotten an earlier (not very useful) XY wing 247 that removes the 4 fromr7c8 allowing the easy analysis in box 9 referred to above!
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George Woods



Joined: 28 Mar 2006
Posts: 234
Location: Dorset UK

PostPosted: Tue May 10, 2011 11:55 am    Post subject: the pukha solution? Reply with quote

The "official" route seems to be X wing on 8 XYZ 457 leading to x wing on 7.
then two xy wings on 247 to remove both 4 and 2 fromr7c8!
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prakash



Joined: 02 Jan 2008
Posts: 67
Location: New Jersey, USA

PostPosted: Wed May 11, 2011 2:27 am    Post subject: Duh! Reply with quote

Thanks George! I totally missed the the second XY 247 wing.
-PJ
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kragzy



Joined: 01 May 2007
Posts: 112
Location: Australia

PostPosted: Thu May 12, 2011 4:38 am    Post subject: Reply with quote

I am relieved to read the comments above! I've just solved this one and thought I was making an absolute dog's breakfast of it. As it happened I went down the X wing, XYZ wing, XY wing path - but is was hard going and took me over 30 minutes to get through it. Glad to see I wasn't the only one who found this puzzle 'messy'.
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Dart45



Joined: 16 Apr 2008
Posts: 17
Location: Canada

PostPosted: Thu May 12, 2011 12:17 pm    Post subject: Reply with quote

I guess I just don't get it!

Everyone here is complaining about how messy the solution to the puzzle was and that it was hard going and took over 30 minutes to get through it.

Get a life! It was a puzzle! You got 30 minutes of challenge out of it! Geesh...
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Marty R.



Joined: 12 Feb 2006
Posts: 5164
Location: Rochester, NY, USA

PostPosted: Thu May 12, 2011 3:36 pm    Post subject: Reply with quote

Dart45 wrote:
I guess I just don't get it!

Everyone here is complaining about how messy the solution to the puzzle was and that it was hard going and took over 30 minutes to get through it.

Get a life! It was a puzzle! You got 30 minutes of challenge out of it! Geesh...

I don't view the comments as complaints. Most of these puzzles are easy one-steppers, so this one was somewhat of an anomaly.
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kragzy



Joined: 01 May 2007
Posts: 112
Location: Australia

PostPosted: Thu May 12, 2011 11:07 pm    Post subject: Reply with quote

I certainly wasn't complaining. I enjoy a challenging puzzle. It was just that on this occasion, I thought I was blind to the obvious (which often happens!). As it turned out, I was not alone. Phew - alzheimers hasn't hit yet.
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keith



Joined: 19 Sep 2005
Posts: 3178
Location: near Detroit, Michigan, USA

PostPosted: Sat May 14, 2011 3:02 pm    Post subject: Reply with quote

After basics:
Code:
+----------------+----------------+----------------+
| 478  1    4578 | 9    45   6    | 3    2478 248  |
| 2    9    47   | 3    8    1    | 47   6    5    |
| 6    3    458  | 2    45   7    | 9    48   1    |
+----------------+----------------+----------------+
| 17   5    6    | 4    17   2    | 8    9    3    |
| 147  8    147  | 16   3    9    | 27   5    26   |
| 3    2    9    | 8    67   5    | 1    47   46   |
+----------------+----------------+----------------+
| 5    7    3    | 16   169  8    | 24   124  249  |
| 9    4    18   | 5    2    3    | 6    18   7    |
| 18   6    2    | 7    19   4    | 5    3    89   |
+----------------+----------------+----------------+
It took me six steps: X 8, XYZ -459, XY 2-47, X 1, X 7, XY -247, though I ignored the UR.

Keith
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peterj



Joined: 26 Mar 2010
Posts: 974
Location: London, UK

PostPosted: Sat May 14, 2011 3:54 pm    Post subject: Reply with quote

I know this is not normally needed for these puzzles but an m-wing solves it in one step.
Code:
m-wing(27) (2=7)r5c7 - r6c8=(7-2)r1c8=r7c8 ; r7c7<>2
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keith



Joined: 19 Sep 2005
Posts: 3178
Location: near Detroit, Michigan, USA

PostPosted: Sun May 15, 2011 3:20 am    Post subject: Reply with quote

peterj wrote:
I know this is not normally needed for these puzzles but an m-wing solves it in one step.
Code:
m-wing(27) (2=7)r5c7 - r6c8=(7-2)r1c8=r7c8 ; r7c7<>2

Nice!

But, isn't that kind of like bringing a gun to a knife fight?

Keith Laughing
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peterj



Joined: 26 Mar 2010
Posts: 974
Location: London, UK

PostPosted: Sun May 15, 2011 11:01 am    Post subject: Reply with quote

keith wrote:
But, isn't that kind of like bringing a gun to a knife fight?

I'd say it was only a minor escalation in weaponry! Sort of BB/Air gun level Smile
You could argue that, from a chain perspective, wsml- wings are simpler than xy-wings - same number of strong links but only involving two candidates. (I'm not really going to argue that...)
For me I generally do a better job of spotting m-wings than xyz-wings for sure!
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storm_norm



Joined: 18 Oct 2007
Posts: 1741

PostPosted: Sun May 15, 2011 10:52 pm    Post subject: Reply with quote

yet another one stepper, w-wing with als pincer in this video.
http://youtu.be/x2qcDQ0cKEI
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sudocraz



Joined: 28 Apr 2008
Posts: 47

PostPosted: Mon May 16, 2011 1:55 am    Post subject: Reply with quote

Now this is the kind of puzzle that I like. I like multiple steps in a puzzle, it makes it a lot more fun. Very Happy
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keith



Joined: 19 Sep 2005
Posts: 3178
Location: near Detroit, Michigan, USA

PostPosted: Mon May 16, 2011 3:29 am    Post subject: Reply with quote

storm_norm wrote:
yet another one stepper, w-wing with als pincer in this video.
http://youtu.be/x2qcDQ0cKEI


Bringing a baseball bat to a pillow fight? Wink

I agree, much more fun, and much more interesting, than this site's usual VH, which is: XY, thank you ma'am..
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