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Vanhegan fiendish August 1, 2012

 
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arkietech



Joined: 31 Jul 2008
Posts: 1708
Location: Northwest Arkansas USA

PostPosted: Thu Aug 02, 2012 7:15 am    Post subject: Vanhegan fiendish August 1, 2012 Reply with quote

Code:
 *-----------*
 |2..|...|5.8|
 |.7.|.81|.9.|
 |6..|2..|...|
 |---+---+---|
 |.5.|.6.|8..|
 |.4.|8.2|.3.|
 |..3|.9.|.6.|
 |---+---+---|
 |...|..4|..9|
 |.9.|63.|.2.|
 |3.4|...|..1|
 *-----------*
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tlanglet



Joined: 17 Oct 2007
Posts: 2461
Location: Northern California Foothills

PostPosted: Thu Aug 02, 2012 12:53 pm    Post subject: Reply with quote

Code after basics:
Code:
*-----------------------------------------------------------*
 | 2     3     19    | 79    47    6     | 5     147   8     |
 | 4     7     5     | 3     8     1     | 2     9     6     |
 | 6     18    189   | 2     457   579   | 147   147   3     |
 |-------------------+-------------------+-------------------|
 | 9     5     27    | 147   6     3     | 8     147   247   |
 | 17    4     6     | 8     157   2     | 9     3     57    |
 | 178   128   3     | 1457  9     57    | 147   6     2457  |
 |-------------------+-------------------+-------------------|
 | 578   6     27    | 15    125   4     | 3     58    9     |
 | 158   9     18    | 6     3     58    | 47    2     47    |
 | 3     28    4     | 579   257   5789  | 6     58    1     |
 *-----------------------------------------------------------*

I did not readily spot an easy pattern type solution, so...............

9r3c6=(9-8)r9c6=r8c6-r8c3=r3c3; -9r3c3

Ted
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Marty R.



Joined: 12 Feb 2006
Posts: 5122
Location: Rochester, NY, USA

PostPosted: Thu Aug 02, 2012 4:32 pm    Post subject: Reply with quote

Code:
*-----------------------------------------------------------*
 | 2     3     19    | 79    47    6     | 5     147   8     |
 | 4     7     5     | 3     8     1     | 2     9     6     |
 | 6     18    189   | 2     457   579   | 147   147   3     |
 |-------------------+-------------------+-------------------|
 | 9     5     27    | 147   6     3     | 8     147   247   |
 | 17    4     6     | 8     157   2     | 9     3     57    |
 | 178   128   3     | 1457  9     57    | 147   6     2457  |
 |-------------------+-------------------+-------------------|
 | 578   6     27    | 15    125   4     | 3     58    9     |
 | 158   9     18    | 6     3     58    | 47    2     47    |
 | 3     28    4     | 579   257   5789  | 6     58    1     |
 *-----------------------------------------------------------*


M-Wing (47). Either the 4 or 7 in r8c7 proves itself in r13c8. If r13c8<>4 or 7, then r4c8 is that value; r6c7<>47.
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Marty R.



Joined: 12 Feb 2006
Posts: 5122
Location: Rochester, NY, USA

PostPosted: Thu Aug 02, 2012 11:45 pm    Post subject: Reply with quote

Quote:

M-Wing (47). Either the 4 or 7 in r8c7 proves itself in r13c8. If r13c8<>4 or 7, then r4c8 is that value; r6c7<>47.


I was extremely proud of my solution. However, a reliable source told me (offline) that my reasoning was invalid. So, I guess no more grouped M-Wings or whatever it was called. Crying or Very sad
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