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Vanhegan extreme

 
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Marty R.



Joined: 12 Feb 2006
Posts: 5162
Location: Rochester, NY, USA

PostPosted: Fri Aug 24, 2012 5:39 pm    Post subject: Vanhegan extreme Reply with quote

This is puzzle #6-305038, rated 2.1.1.0.1 and I'm getting nowhere after playing an X-Wing which did basically nothing except eliminate a couple of 8s.

Code:

+-----------------+-------+-------------+
| 7     239  2389 | 6 5 1 | 239 389 4   |
| 4     1    35   | 2 8 9 | 37  6   357 |
| 25689 2569 2569 | 7 4 3 | 29  1   589 |
+-----------------+-------+-------------+
| 2569  2569 7    | 3 1 8 | 4   29  69  |
| 3     8    4    | 9 6 2 | 5   7   1   |
| 269   269  1    | 4 7 5 | 8   239 369 |
+-----------------+-------+-------------+
| 259   2579 259  | 8 3 6 | 1   4   79  |
| 689   4    369  | 1 2 7 | 369 5   389 |
| 1     367  368  | 5 9 4 | 367 38  2   |
+-----------------+-------+-------------+

Play this puzzle online at the Daily Sudoku site
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arkietech



Joined: 31 Jul 2008
Posts: 1725
Location: Northwest Arkansas USA

PostPosted: Fri Aug 24, 2012 5:57 pm    Post subject: Reply with quote

Code:

 *--------------------------------------------------------------------*
 | 7     d239    2389   | 6      5      1      | 29-3   89-3   4      |
 | 4      1      5-3    | 2      8      9      |a37     6      357    |
 | 25689  2569   2569   | 7      4      3      | 29     1      589    |
 |----------------------+----------------------+----------------------|
 | 2569   2569   7      | 3      1      8      | 4      29     69     |
 | 3      8      4      | 9      6      2      | 5      7      1      |
 | 269    269    1      | 4      7      5      | 8      239    369    |
 |----------------------+----------------------+----------------------|
 | 259    2579   259    | 8      3      6      | 1      4      79     |
 | 689    4      369    | 1      2      7      | 369    5      389    |
 | 1     c367    368    | 5      9      4      |b367    38     2      |
 *--------------------------------------------------------------------*
m-wing
(3=7)r2c7-r9c7=(7-3)r9c1=3r1c2 => -3r1c78,r2c3; stte
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Marty R.



Joined: 12 Feb 2006
Posts: 5162
Location: Rochester, NY, USA

PostPosted: Fri Aug 24, 2012 6:00 pm    Post subject: Reply with quote

Thanks Dan, I'm consistently missing those M-Wings. Crying or Very sad
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tlanglet



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

PostPosted: Fri Aug 24, 2012 11:42 pm    Post subject: Reply with quote

Another solution is an

anp(37=5-7)r2c79=7r7c9-r9c7=(7-3)r9c2=r1c2; -3r2c3

Ted
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Luke451



Joined: 20 Apr 2008
Posts: 310
Location: Southern Northern California

PostPosted: Sat Aug 25, 2012 2:41 am    Post subject: Reply with quote

MUG(2569)r3467c12 renders a strong link (8)r3c1=(7)r7c2, so what the heck:
Code:
*--------------------------------------------------------------------*
 | 7      239    2389   | 6      5      1      | 239    389    4      |
 | 4      1      35     | 2      8      9      | 37     6      357    |
 |*2569+8 *2569  2569   | 7      4      3      | 29     1     -859    |
 |----------------------+----------------------+----------------------|
 |*2569  *2569   7      | 3      1      8      | 4      29     69     |
 | 3      8      4      | 9      6      2      | 5      7      1      |
 |*269  * 269    1      | 4      7      5      | 8      239    369    |
 |----------------------+----------------------+----------------------|
 |*259   *259+7  259    | 8      3      6      | 1      4      79     |
 | 689    4      369    | 1      2      7      | 369    5      389    |
 | 1      367    368    | 5      9      4      | 367    38     2      |
 *--------------------------------------------------------------------*

Muggy-wing: (8)r3c1=(7)r7c2-r7c9=(7-5)r2c9=(5)r3c9 ==>r3c9<>8
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tlanglet



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

PostPosted: Sat Aug 25, 2012 12:04 pm    Post subject: Reply with quote

Luke451 wrote:
MUG(2569)r3467c12 renders a strong link (8)r3c1=(7)r7c2, so what the heck:
Code:
*--------------------------------------------------------------------*
 | 7      239    2389   | 6      5      1      | 239    389    4      |
 | 4      1      35     | 2      8      9      | 37     6      357    |
 |*2569+8 *2569  2569   | 7      4      3      | 29     1     -859    |
 |----------------------+----------------------+----------------------|
 |*2569  *2569   7      | 3      1      8      | 4      29     69     |
 | 3      8      4      | 9      6      2      | 5      7      1      |
 |*269  * 269    1      | 4      7      5      | 8      239    369    |
 |----------------------+----------------------+----------------------|
 |*259   *259+7  259    | 8      3      6      | 1      4      79     |
 | 689    4      369    | 1      2      7      | 369    5      389    |
 | 1      367    368    | 5      9      4      | 367    38     2      |
 *--------------------------------------------------------------------*

Muggy-wing: (8)r3c1=(7)r7c2-r7c9=(7-5)r2c9=(5)r3c9 ==>r3c9<>8


Cool Hand, Luke

Once again you had the best solution Exclamation

Ted
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