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Which recipe to cook this goose?

 
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keith



Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
PostPosted: Sun Dec 09, 2007 2:59 pm    Post subject: Which recipe to cook this goose? Reply with quote
Here's an interesting one.
Code:
Puzzle: M6165560sh(11)
+-------+-------+-------+
| . 3 . | 2 . 1 | . . 5 |
| . . 1 | 7 . 9 | 3 . . |
| . . . | . 8 . | . 7 . |
+-------+-------+-------+
| 3 8 . | . . . | . 9 4 |
| . . 4 | . . . | 7 . . |
| 5 7 . | . . . | . 1 3 |
+-------+-------+-------+
| . 2 . | . 1 . | . 5 . |
| . . 5 | 4 . 2 | . . 9 |
| 6 . . | 9 . 8 | . . . |
+-------+-------+-------+


Keith
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storm_norm



Joined: 18 Oct 2007
Posts: 1741
PostPosted: Sun Dec 09, 2007 5:54 pm    Post subject: Reply with quote
you can go the UR path or a simple color on 6 did it for me.
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nataraj



Joined: 03 Aug 2007
Posts: 1048
Location: near Vienna, Austria
PostPosted: Sun Dec 09, 2007 5:58 pm    Post subject: Reply with quote
my recipe:

pluck goose well,
look for the deadly pattern in boxes 2,3 (46, giving 8 in r2c8)
and in boxes 3,9 (12, gives 7 in box 9)
and serve steaming hot.

Code:

+--------------------------+--------------------------+--------------------------+
| 78      3       78       | 2       46      1        | 9       46      5        |
| 2       5       1        | 7       46      9        | 3       468     68       |
| 4       69      69       | 35      8       35       | 12      7       12       |
+--------------------------+--------------------------+--------------------------+
| 3       8       26       | 1       27      67       | 5       9       4        |
| 1       69      4        | 3568    39      356      | 7       268     268      |
| 5       7       29       | 68      29      4        | 68      1       3        |
+--------------------------+--------------------------+--------------------------+
| 9       2       378      | 36      1       367      | 4       5       78       |
| 78      1       5        | 4       37      2        | 68      368     9        |
| 6       4       37       | 9       5       8        | 12      23      127      |
+--------------------------+--------------------------+--------------------------+


one could also have used the 35 potential DP together with strong link in 5 (row 5), which makes r5c5=3, but I didn't (no overcooking!)
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nataraj



Joined: 03 Aug 2007
Posts: 1048
Location: near Vienna, Austria
PostPosted: Sun Dec 09, 2007 6:10 pm    Post subject: Reply with quote
storm_norm wrote:
you can go the UR path or a simple color on 6 did it for me.


Yep, I went the UR path.
coloring on 6 ? I still don't see it (there's an awful lot of sixes...). Where?
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Sun Dec 09, 2007 6:24 pm    Post subject: Reply with quote
One technique did it for me (although I did notice the UR). I used a:

W-Wing or

Remote naked pairs or

Semi-remote naked pairs or

Not-too-far-away naked pairs Rolling Eyes Laughing

Keith, I tried what you mentioned in another thread, only writing in PMs when there were just two candidates. However, after that, I didn't know what to do, so I wrote in the full PMs.
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keith



Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
PostPosted: Sun Dec 09, 2007 7:21 pm    Post subject: As I see it Reply with quote
Marty,

What I meant was go slow. I usually scan the puzzle twice (rows, columns, boxes) before starting on pm's for two-candidate cells. Then I look for possible pairs and triples, and also box-line interactions. Eventually, for any difficult puzzle, you have to put in all the candidates.

Here's how I see this one:
Code:
+----------------+----------------+----------------+
| 78   3    78@  | 2    46   1    | 9    46   5    |
| 2    5    1    | 7    46   9    | 3    468  68   |
| 4    69   69   | 35   8    35   | 12   7    12   |
+----------------+----------------+----------------+
| 3    8    26   | 1    27   67   | 5    9    4    |
| 1    69   4    | 3568 39   356  | 7    268  268  |
| 5    7    29   | 68   29   4    | 68   1    3    |
+----------------+----------------+----------------+
| 9    2    37-8 | 36   1    367  | 4    5    78%  |
| 78#  1    5    | 4    37   2    | 68   368  9    |
| 6    4    37   | 9    5    8    | 12   23   127  |
+----------------+----------------+----------------+

There are three UR's: Type 1 on <46> and <12>, and Type 3 on <35>. The last makes eliminations <68> in B5 and <268> in R5.

Or, there is a choice of W-wings @% or #%, each of which takes out <8> in R7C3.

But, I've had those meals. I thought I'd try my new recipe, Medusa Coloring.

Starting in R1C1, color the candidates <8>:



(Click on the image to see a larger one.)

Then, color <7>:


The result is two red <7>'s in C3 and in B7. Blue must be true.

Good recipe. Problem is, W-wing is complaining that Medusa stole the recipe and only added some spice!

Eat well!

Keith
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