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Vanhegan extreme

 
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Sat May 26, 2012 12:12 pm    Post subject: Vanhegan extreme Reply with quote
I'll make like Dan and donate a puzzle. This is #6-1308813, rated 2.1.0.1.1.

I used four non-chain moves.

Code:

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

Play this puzzle online at the Daily Sudoku site
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arkietech



Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
PostPosted: Sat May 26, 2012 12:57 pm    Post subject: Re: Vanhegan extreme Reply with quote
Marty R. wrote:
I'll make like Dan and donate a puzzle. This is #6-1308813, rated 2.1.0.1.1.

I used four non-chain moves.

Code:

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


This is a bad puzzle. From the pattern there seems to be a given missing from r8c6 Confused
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keith



Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
PostPosted: Sat May 26, 2012 1:06 pm    Post subject: Re: Vanhegan extreme Reply with quote
arkietech wrote:
Marty R. wrote:
I'll make like Dan and donate a puzzle. This is #6-1308813, rated 2.1.0.1.1.

I used four non-chain moves.

Code:

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


This is a bad puzzle. From the pattern there seems to be a given missing from r8c6 Confused


Try this:

--8-9--4-2--8----56----4---7-6-1-4---3-6-8-7---9-3-1-8---9----39----3--4-6--8-7--

Code:
+----------------------+----------------------+----------------------+
| 135    157    8      | 12357  9      12567  | 236    4      1267   |
| 2      1479   1347   | 8      67     167    | 369    1369   5      |
| 6      1579   1357   | 12357  257    4      | 2389   12389  1279   |
+----------------------+----------------------+----------------------+
| 7      258    6      | 25     1      259    | 4      2359   29     |
| 145    3      1245   | 6      245    8      | 259    7      29     |
| 45     245    9      | 2457   3      257    | 1      256    8      |
+----------------------+----------------------+----------------------+
| 1458   124578 12457  | 9      24567  12567  | 2568   12568  3      |
| 9      12578  1257   | 1257   2567   3      | 2568   12568  4      |
| 1345   6      12345  | 1245   8      125    | 7      1259   129    |
+----------------------+----------------------+----------------------+


Keith
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arkietech



Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
PostPosted: Sat May 26, 2012 1:26 pm    Post subject: Reply with quote
much better! Very Happy
Code:

 *-----------*
 |..8|.9.|.4.|
 |2..|8..|..5|
 |6..|..4|...|
 |---+---+---|
 |7.6|.1.|4..|
 |.3.|6.8|.7.|
 |..9|.3.|1.8|
 |---+---+---|
 |...|9..|..3|
 |9..|..3|..4|
 |.6.|.8.|7..|
 *-----------*
 *--------------------------------------------------------------------*
 |b135    7      8      | 123    9     c125    | 23     4      6      |
 | 2      49     34     | 8      67     67     | 39     1      5      |
 | 6      159    135    | 123    25     4      | 2389   28     7      |
 |----------------------+----------------------+----------------------|
 | 7      8      6      | 5      1      9      | 4      3      2      |
 | 14     3      124    | 6      24     8      | 5      7      9      |
 |a45     245    9      | 27-4   3      27     | 1      6      8      |
 |----------------------+----------------------+----------------------|
 | 8      1245   12457  | 9      24567  12567  | 26     25     3      |
 | 9      125    1257   | 127    2567   3      | 268    258    4      |
 | 35-4   6      2345   |e24     8     d25     | 7      9      1      |
 *--------------------------------------------------------------------*
xy-wing with extension
(4=5)r6c1-r1c1=r6c1-(5=2)r9c6-(2=4)r9c4 => r6c4,r9c1<>4; stte
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Sat May 26, 2012 3:22 pm    Post subject: Reply with quote
Quote:
This is a bad puzzle. From the pattern there seems to be a given missing from r8c6


Sorry. Even double-checking when posting wasn't good enough. Embarassed
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keith



Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
PostPosted: Sat May 26, 2012 8:18 pm    Post subject: Reply with quote
After basics:
Code:
+-------------------+-------------------+-------------------+
|C135   7     8     | 123   9    B125   | 23    4     6     |
| 2     49    34    | 8     67    67    | 39    1     5     |
| 6     159   135   | 123  A25    4     | 2389  28    7     |
+-------------------+-------------------+-------------------+
| 7     8     6     | 5     1     9     | 4     3     2     |
| 14    3    F124   | 6    -24    8     | 5     7     9     |
|D45   E245   9     | 247   3     27    | 1     6     8     |
+-------------------+-------------------+-------------------+
| 8     1245  12457 | 9     24567 12567 | 26    25    3     |
| 9     125   1257  | 127   2567  3     | 268   258   4     |
| 345   6     2345  | 24    8     25    | 7     9     1     |
+-------------------+-------------------+-------------------+
M-wing: 5 in A causes 5 in E; AF are pincers on 2.

Keith
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Sun May 27, 2012 1:32 pm    Post subject: Reply with quote
Both of the previously posted solutions are very nice Exclamation

I initially tried some single digit steps and found a two step solution that also shared some common logic with the previous posts.

Kraken x-wing(4)r27c23=(4)r7c5-(4=2)r5c5-(2=14)r5c31; r6c2<>4

This set up a w-wing(25)r3c5/r6c2 with transport:
(5)r1c1=(5)r1c6-(5=2)r3c5-r5c5=r5c3-(2=5)r6c2; r3c2,r6c1<>5

Ted
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keith



Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
PostPosted: Sun May 27, 2012 2:48 pm    Post subject: Reply with quote
tlanglet wrote:
Both of the previously posted solutions are very nice Exclamation

Ted

There is another interesting M-wing combination, but it does not really lead to a different end game:
Code:
+-------------------+-------------------+-------------------+
| 135   7     8     | 123   9     125   | 23    4     6     |
| 2     49    34    | 8     67    67    | 39    1     5     |
| 6     159   135   | 123   25    4     | 2389  28    7     |
+-------------------+-------------------+-------------------+
| 7     8     6     | 5     1     9     | 4     3     2     |
| 14    3    D124   | 6    A24    8     | 5     7     9     |
| 45    25    9     |B247   3    -27    | 1     6     8     |
+-------------------+-------------------+-------------------+
| 8     1245  12457 | 9    -24567 12567 | 26    25    3     |
| 9     125   1257  | 127  -2567  3     | 268   258   4     |
| 345   6    -2345  |C24    8    E25    | 7     9     1     |
+-------------------+-------------------+-------------------+

Classic M-wing: 4 in A forces 4 in C, and vice-versa. CD are pincers on 2.

-2 in R9C3 opens another M-wing: AE are pincers on 2.

It does a lot of damage, but I could not find it leads to a different ending solution path.

Keith
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Sun May 27, 2012 3:41 pm    Post subject: Reply with quote
I used four wings: M, M, Finned X and W.
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