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A puzzle.

 
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5iyubaobao



Joined: 02 Jan 2008
Posts: 9
Location: BeiJing China
PostPosted: Wed Jan 09, 2008 1:24 am    Post subject: A puzzle. Reply with quote
Hi, all

Here is a new puzzle,
Code:

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


Using the “Draw/play” tool, the grade is too hard. I calculated it, but can not get the final result. Here is my result:
Code:

+---------------+------------------+------------------+
| 4    1   7    | 68    9     58   | 56     2   3     |
| 2    5   8    | 167   3     4    | 167    9   167   |
| 36   69  369  | 2     15    57   | 157    8   4     |
+---------------+------------------+------------------+
| 8    69  1    | 4     7     3    | 269    5   269   |
| 5    3   2    | 9     8     6    | 4      17  17    |
| 7    4   69   | 5     2     1    | 69     3   8     |
+---------------+------------------+------------------+
| 36   2   346  | 178   46    9    | 178    17  5     |
| 1    78  56   | 3     56    278  | 2789   4   279   |
| 9    78  45   | 178   145   2578 | 3      6   127   |
+---------------+------------------+------------------+

And I can not do any more.

I wonder whether this puzzle can be solved? If it has final result, which is the next digital and how to get it?
Thank you for your time.
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storm_norm



Joined: 18 Oct 2007
Posts: 1741
PostPosted: Wed Jan 09, 2008 6:12 am    Post subject: Reply with quote
at first glance, i am seeing a UR on {3,6} in rows 3 and 7 and columns 1 and 3

I don't have the types memorized, but the 3's in col 3 are conjugate so the 6 can be removed from r3c3 and r7c3 .
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storm_norm



Joined: 18 Oct 2007
Posts: 1741
PostPosted: Wed Jan 09, 2008 6:18 am    Post subject: Reply with quote
oops, of course the puzzle is invalid
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ravel



Joined: 21 Apr 2006
Posts: 536
PostPosted: Wed Jan 09, 2008 8:32 am    Post subject: Reply with quote
It has 13 solutions:
Code:
417895623258634197369217584891473256532986471746521938623749815185362749974158362
417698523258134697369257184891473256532986471746521938623749815185362749974815362
417698523258134697369257184891473256532986471746521938623849715175362849984715362
417698523258134796396257184861473259532986471749521638623749815185362947974815362
417698523258134796693257184861473259532986471749521638326749815185362947974815362
417698523258734196369215784891473652532986417746521938623149875185367249974852361
417698523258734196396215784861473259532986417749521638623149875185367942974852361
417698523258734196396215784861473952532986417749521638623149875185367249974852361
417698523258734196693215784861473259532986417749521638324169875186357942975842361
417698523258734196693215784861473259532986417749521638326149875185367942974852361
417698523258734196693215784861473952532986417749521638324169875186357249975842361
417698523258734196693215784861473952532986417749521638326149875185367249974852361
417698523258734691369215784891473256532986417746521938623849175175362849984157362
Where is this shame from ?
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5iyubaobao



Joined: 02 Jan 2008
Posts: 9
Location: BeiJing China
PostPosted: Thu Jan 10, 2008 8:22 am    Post subject: Reply with quote
Ok. I See.

Thank you for your help!
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