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Dec 15 DB

 
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Earl



Joined: 30 May 2007
Posts: 677
Location: Victoria, KS
PostPosted: Sun Dec 16, 2007 10:05 pm    Post subject: Dec 15 DB Reply with quote
The December 15 DB.
A skyscraper or a BUG+1 does it.

Earl


*-----------*
|9..|3..|...|
|.3.|..9|.72|
|..8|.7.|3.1|
|---+---+---|
|..4|8..|75.|
|...|.5.|...|
|.85|..6|2..|
|---+---+---|
|7.6|.2.|5..|
|81.|5..|.4.|
|...|..4|..7|
*-----------*
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Johan



Joined: 25 Jun 2007
Posts: 206
Location: Bornem Belgium
PostPosted: Sun Dec 16, 2007 11:11 pm    Post subject: Reply with quote
There is also an ER in Box 8 for digit <9> (a T-shaped hinge) that takes out <9> in R7C9, solving the puzzle. The strong link* on <9> is in R6, or you can choose for the finned x-wing@ on <9> in R57C49 (F=fin), eliminating <9> in R6C9. So there are many diffirent options for this one to solve.

After basics :
Code:

+--------------------------+--------------------------+--------------------------+
| 9           2         7  | 3          1          8  | 4          6        5    |
| 5           3         1  | 46         46         9  | 8          7        2    |
| 4           6         8  | 2          7          5  | 3          9        1    |
+--------------------------+--------------------------+--------------------------+
| 2           9         4  | 8          3          1  | 7          5        6    |
| 6           7         3  |@49         5          2  | 19 F       18      @489  |
| 1           8         5  | 7        * 49         6  | 2          3      * 4-[9]|
+--------------------------+--------------------------+--------------------------+
| 7           4         6  |@19         2          3  | 5          18      @8-[9]|
| 8           1         2  | 5  er      69      er 7  | 69         4         3   |
| 3           5         9  | 16 er      8       er 4  | 16         2         7   |
+--------------------------+--------------------------+--------------------------+
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keith



Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
PostPosted: Sun Dec 16, 2007 11:28 pm    Post subject: Reply with quote
Earl,

Thank you for posting these! I really miss them here in my local paper (Detroit Free Press).

Keith
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Mon Dec 17, 2007 1:07 am    Post subject: Reply with quote
Like Johan, basics got me to a BUG+1 pattern. I made the same elimination, but via simple coloring rather than ERs.
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