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MM 1377 april 17, 2009

 
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storm_norm



Joined: 18 Oct 2007
Posts: 1741

PostPosted: Sat Apr 18, 2009 3:48 am    Post subject: MM 1377 april 17, 2009 Reply with quote

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


enjoy !!
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills

PostPosted: Sat Apr 18, 2009 1:00 pm    Post subject: Reply with quote

I started this puzzle with my normal sequence of single digit steps and then bivalues steps, but no luck. It was time for chains (which I am not good at), or to go fishing (since wapati has got me interested in the sport with his recent posts).

I hooked a BIG ONE; a finned jelly fish on <7> in r1357c1379 with the fin at r7c2 that deletes <7> at r8c1. After cleanup, a BUG+1 or a xy-wing completes the puzzle.

Ted Very Happy Very Happy
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storm_norm



Joined: 18 Oct 2007
Posts: 1741

PostPosted: Sat Apr 18, 2009 10:57 pm    Post subject: Reply with quote

ted, nice.
but you will probably kick yourself for missing the finned x-wing in columns 2 and 7 on candidate 7
Code:
.------------------.------------------.------------------.
| 457   2     1    | 45    3     8    | 6     9     47   |
| 346   39    369  | 469   2     7    | 5     1     8    |
| 4567  8     679  | 4569  1     569  | 247   3     247  |
:------------------+------------------+------------------:
| 1     5     68   | 7     9     3    | 28    4     26   |
| 9     4     78   | 2     6     1    | 78    5     3    |
| 367  *37    2    | 8     5     4    | 9    *67    1    |
:------------------+------------------+------------------:
| 8    *1379  379  | 1569  4     569  | 137   2     5679 |
|2-7   *179   4    | 3     8     2569 | 17   *67    5679 |
| 23    6     5    | 19    7     29   | 134   8     49   |
'------------------'------------------'------------------'
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keith



Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA

PostPosted: Sun Apr 19, 2009 7:59 pm    Post subject: Reply with quote

How about the extended W-wing?
Code:
+----------------+----------------+----------------+
| 457  2    1    | 45   3    8    | 6    9    47   |
| 346  39   369  | 469  2    7    | 5    1    8    |
| 4567 8    679  | 4569 1    569  | 247  3    247  |
+----------------+----------------+----------------+
| 1    5    68   | 7    9    3    | 28   4    26   |
| 9    4    78   | 2    6    1    | 78   5    3    |
|-367  37%  2    | 8    5    4    | 9    67@  1    |
+----------------+----------------+----------------+
| 8   1-379 379  | 1569 4    569  | 137  2    5679 |
| 27#  179  4    | 3    8    2569 | 17   67@  5679 |
| 23#  6    5    | 19   7    29   | 134  8    49   |
+----------------+----------------+----------------+

The cells # are a pseudocell <37> in C1 and B7 that makes a pincer on <3> with %. The strong link is marked @.

Then, an XY-wing or a BUG+1 finishes it off.

Keith


Last edited by keith on Sun Apr 19, 2009 8:09 pm; edited 1 time in total
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storm_norm



Joined: 18 Oct 2007
Posts: 1741

PostPosted: Sun Apr 19, 2009 8:06 pm    Post subject: Reply with quote

keith wrote:
How about the extended W-wing?
Code:
+----------------+----------------+----------------+
| 457  2    1    | 45   3    8    | 6    9    47   |
| 346  39   369  | 469  2    7    | 5    1    8    |
| 4567 8    679  | 4569 1    569  | 247  3    247  |
+----------------+----------------+----------------+
| 1    5    68   | 7    9    3    | 28   4    26   |
| 9    4    78   | 2    6    1    | 78   5    3    |
|-367  37%  2    | 8    5    4    | 9    67@  1    |
+----------------+----------------+----------------+
| 8   1-379 379  | 1569 4    569  | 137  2    5679 |
| 27#  179  4    | 3    8    2569 | 17   67@  5679 |
| 23#  6    5    | 19   7    29   | 134  8    49   |
+----------------+----------------+----------------+

The cells # are a pseudocell <37> in C1, the make a pincer on <3> with %. The strong link is marked @.

Then, an XY-wing or a BUG+1 finishes it off.

Keith

nice.
that w-wing uses some of the finned x-wing cells, good catch.
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keith



Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA

PostPosted: Mon Apr 20, 2009 2:36 am    Post subject: Reply with quote

Ted, Norm:

Might y'all be talking about the same thing?

We know that all n-fish have a complement that is at most a 9-n fish. For example, if you have a swordfish in the rows, there will be an X-wing, swordfish, jelly fish ... in the columns that makes the same eliminations.

Is the same true of finned fish? Is Ted's finned jellyfish the same as Norm's finned X-wing, in that it makes the same eliminations?

=> Do finned fish have complements?

(I don't fish. I find that, beyond X-wings, coloring is just fine.)

Keith
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storm_norm



Joined: 18 Oct 2007
Posts: 1741

PostPosted: Mon Apr 20, 2009 2:42 am    Post subject: Reply with quote

Quote:
Is the same true of finned fish? Is Ted's finned jellyfish the same as Norm's finned X-wing, in that it makes the same eliminations?

I haven't studied up on all fin variations to know for sure. I think you are right, tho. Ted saw it in four rows/columns where I saw it in two columns.
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keith



Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA

PostPosted: Mon Apr 20, 2009 2:52 am    Post subject: Reply with quote

storm_norm wrote:
Quote:
Is the same true of finned fish? Is Ted's finned jellyfish the same as Norm's finned X-wing, in that it makes the same eliminations?

I haven't studied up on all fin variations to know for sure. I think you are right, tho. Ted saw it in four rows/columns where I saw it in two columns.

The answer to my question may be yes, or no. I am not thinking of right (or wrong).

But, I do think it is a provocative question: Do finned fish have complements like unfinned fish do?

Keith
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storm_norm



Joined: 18 Oct 2007
Posts: 1741

PostPosted: Mon Apr 20, 2009 3:01 am    Post subject: Reply with quote

Quote:
I am not thinking of right (or wrong).

I meant that I think your suspiciouns are right, that the finned x-wing is actually just part of Ted's finned jellyfish.
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills

PostPosted: Mon Apr 20, 2009 12:04 pm    Post subject: Reply with quote

Keith wrote:
=> Do finned fish have complements?

I do not have an opinion at this time, but it will be interesting to check for this condition in the future when we find other finned wings.

Ted
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daj95376



Joined: 23 Aug 2008
Posts: 3854

PostPosted: Mon Apr 20, 2009 4:20 pm    Post subject: Reply with quote

keith wrote:
=> Do finned fish have complements?

I use to fish a lot, but I didn't do much with complements. That said, I believe the answer to your question is probably yes as long as you're talking about basic fish.

When a finned basic fish has a complement of the same size, I've noticed that they have the same fin cell. Unfortunately, I have almost no experience with complements of differing size.

Here's Norm's and Ted's complementary fish from my Generic Fish Finder (GFF) program.

Code:
2-Fish c28\r68                  f  020\200  <> 7  [r8c1]
4-Fish r1357\c1379              f  400\040  <> 7  [r8c1]

However, the concept of complementary fish gets confusing for me once you go beyond basic fish. There's a finned (Sashimi) Franken X-Wing present for the same elimination. I have no idea how to define a complement for it.

Code:
2-Fish c28\r6b7                 fF 020\101  <> 7  [r8c1]
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