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Menneske 6066265

 
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arkietech



Joined: 31 Jul 2008
Posts: 1733
Location: Northwest Arkansas USA

PostPosted: Fri Oct 19, 2012 6:23 am    Post subject: Menneske 6066265 Reply with quote

Code:

 *-----------*
 |.1.|...|.4.|
 |9..|15.|..3|
 |..8|..3|9..|
 |---+---+---|
 |.9.|3..|.26|
 |...|...|...|
 |25.|..4|.9.|
 |---+---+---|
 |..9|8..|2..|
 |7..|.96|..5|
 |.2.|...|.3.|
 *-----------*

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tlanglet



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

PostPosted: Fri Oct 19, 2012 9:12 am    Post subject: Reply with quote

Code after basics:
Code:
 *-----------------------------------------------------------------------------*
 | 356     1       2356    | 679     2678    2789    | 5678    4       278     |
 | 9       467     246     | 1       5       278     | 678     678     3       |
 | 56      67      8       | 467     2467    3       | 9       1567    127     |
 |-------------------------+-------------------------+-------------------------|
 | 148     9       147     | 3       178     1578    | 14578   2       6       |
 | 13468   38      13467   | 5679    12678   125789  | 134578  1578    1478    |
 | 2       5       1367    | 67      1678    4       | 1378    9       178     |
 |-------------------------+-------------------------+-------------------------|
 | 1456    46      9       | 8       3       157     | 2       167     147     |
 | 7       38      134     | 2       9       6       | 148     18      5       |
 | 1568    2       156     | 457     147     157     | 1678    3       9       |
 *-----------------------------------------------------------------------------*


The deletion can be expressed in several ways. I initially viewed it as an "up/down" skyscraper(5)r5c48 with transport.

Chain(5): r3c8=r5c8-r5c4=r9c4-r9c13=r7c1-r13c1=r1c3 => -5r1c7

Ted
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Clement



Joined: 24 Apr 2006
Posts: 686
Location: Dar es Salaam Tanzania

PostPosted: Fri Oct 19, 2012 2:38 pm    Post subject: Menneske 6066265 Reply with quote

Code:

+-----------------+-------------------+------------------+
| 356   1   23567 | 679  2678  2789   | 5678   4    278  |
| 9     467 2467  | 1    5     278    | 678    678  3    |
| -56    67  8     | 467  2467  3      | 9      1567 127  |
+-----------------+-------------------+------------------+
| 148   9   147   | 3    178   1*578   | 14578  2    6    |
| 13468 38  13467 | 5679 12678 125789 | 134578 1578 1478 |
| 2     5   1367  | 67   1678  4      | 1378   9    178  |
+-----------------+-------------------+------------------+
| 1456  46  9     | 8    3     157    | 2      167  147  |
| 7     38  134   | 2    9     6      | 148    18   5    |
| 1568  2   156   | 457  147   157    | 1678   3    9    |
+-----------------+-------------------+------------------+
Digit Forcing Chain
5r4c6-5r79c6=5r9c4-5r9c1=5r7c1; r3c1<>5
-5r4c6=5r4c7-5r1c7=5r1c13; r3c1<>5 solves it.
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arkietech



Joined: 31 Jul 2008
Posts: 1733
Location: Northwest Arkansas USA

PostPosted: Fri Oct 19, 2012 2:45 pm    Post subject: Re: Menneske 6066265 Reply with quote

Clement wrote:
Digit Forcing Chain
5r4c6-5r79c6=5r9c4-5r9c1=5r7c1; r3c1<>5
-5r4c6=5r4c7-5r1c7=5r1c13; r3c1<>5 solves it.


or

Code:

 *-----------------------------------------------------------------------------*
 |*356     1      f2356    | 679     2678    2789    |*5678    4       278     |
 | 9       467     246     | 1       5       278     | 678     678     3       |
 | 6-5     67      8       | 467     2467    3       | 9       1567    127     |
 |-------------------------+-------------------------+-------------------------|
 | 148     9       147     | 3       178    *1578    |*14578   2       6       |
 | 13468   38      13467   | 5679    12678   125789  | 134578  1578    1478    |
 | 2       5       1367    | 67      1678    4       | 1378    9       178     |
 |-------------------------+-------------------------+-------------------------|
 |*1456    46      9       | 8       3      *157     | 2       167     147     |
 | 7       38      134     | 2       9       6       | 148     18      5       |
 | 1568    2       156     | 457     147     157     | 1678    3       9       |
 *-----------------------------------------------------------------------------*
finned swordfish 5r147c167, fr1c3 => -5r3c1


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tlanglet



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

PostPosted: Fri Oct 19, 2012 3:00 pm    Post subject: Reply with quote

Hi Clement,

Your solution is good; one of several variations possible on 5s.

Your posting is complete and clear. An alternate method of presenting your solution is a single statement. One possibility would be to start with your second statement and walk it backwards and ending with your first statement.

Chain 5: r1c13=r1c7-r4c7=r4c6-r79c6=r9c4-r9c13=r7c1 => -5r3c1

This Eureka notation starts by stating either r1c13=5 or r1c7=5, and then proceeds to specify a logic path given r1c7=5. Note that the first and last statements act like pincers on 5; either r1c13=5 or r7c1=5.

Please ignore this input if it is not useful or desired. I am available to answer any questions you may have.

Ted
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Marty R.



Joined: 12 Feb 2006
Posts: 5179
Location: Rochester, NY, USA

PostPosted: Fri Oct 19, 2012 4:46 pm    Post subject: Reply with quote

Code:
 *--------------------------------------------------------------------------------*
 |  356     1       2356    |  679     2678     2789    | 5678     4       278    |
 |  9       467     246     |  1       5        278     | 678      678     3      |
 | A56      67      8       |  467     2467     3       | 9       B1567    127    |
 |--------------------------+---------------------------+-------------------------|
 |  148     9       147     |  3       178     E1578    | 14578    2       6      |
 |  13468   38      13467   | F5679    12678   E125789  | 134578   1-578   1478   |
 |  2       5       1367    |  67      1678     4       | 1378     9       178    |
 |--------------------------+---------------------------+-------------------------|

 | C1456    46      9       |  8       3       D157     | 2        167     147    |
 |  7       38      134     |  2       9        6       | 148      18      5      |
 |  1568    2       156     |  457     147      157     | 1678     3       9      |
 *--------------------------------------------------------------------------------*



Obviously 5 is the key here. My variation is the Skyscraper ABCD with transport of D to F via E; r5c8<>5.
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Clement



Joined: 24 Apr 2006
Posts: 686
Location: Dar es Salaam Tanzania

PostPosted: Fri Oct 19, 2012 6:36 pm    Post subject: Reply with quote

tlanglet
Yes, I can see, your notation and approach is shorter and clear. Thanks. Where can I get more details of the Eureka Notation?
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tlanglet



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

PostPosted: Sat Oct 20, 2012 12:32 pm    Post subject: Reply with quote

Clement wrote:
tlanglet
Yes, I can see, your notation and approach is shorter and clear. Thanks. Where can I get more details of the Eureka Notation?

Clement,

I used some information from Sudopedia, but that site seems to have been "trashed" and all information lost. Mostly I learned by reviewing posts by others. The notation is rather easy to follow for xy-chains and other simple logic. I suggest that you search the web for both "sudoku eureka notation" and "sudoku AIC notation".

The Eureka notation is not a frozen standard and is still evolving specifically in handling complex components like AURs, basic patterns and ALSs.

The two rules to remember are
1) start and end with a strong link
2) alternate strong link => weak link => strong link, etc.

I will attempt to answer any specific questions. Others on this site with much greater knowledge will also help.

Ted
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keith



Joined: 19 Sep 2005
Posts: 3184
Location: near Detroit, Michigan, USA

PostPosted: Sat Oct 27, 2012 8:00 pm    Post subject: Reply with quote

I have put the Sudopedia entry for Eureka notation here:

http://www.dailysudoku.com/sudoku/forums/viewtopic.php?t=6708

Keith
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tlanglet



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

PostPosted: Sat Oct 27, 2012 8:06 pm    Post subject: Reply with quote

keith wrote:
I have put the Sudopedia entry for Eureka notation here:

http://www.dailysudoku.com/sudoku/forums/viewtopic.php?t=6708

Keith


Thank you very much...... Very Happy
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keith



Joined: 19 Sep 2005
Posts: 3184
Location: near Detroit, Michigan, USA

PostPosted: Sun Oct 28, 2012 1:14 am    Post subject: Reply with quote

tlanglet wrote:
keith wrote:
I have put the Sudopedia entry for Eureka notation here:

http://www.dailysudoku.com/sudoku/forums/viewtopic.php?t=6708

Keith


Thank you very much...... Very Happy


Not a problem. After Sudopedia first went offline and came back, I made a copy of the site. Now, the site is completely trashed.

I have my copy, and it works fine, but I have not been able to share it with anyone else.

I can, however, copy and post particular Sudopedia articles on this site. Just ask.

Keith


Last edited by keith on Tue Nov 20, 2012 10:40 pm; edited 1 time in total
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Marty R.



Joined: 12 Feb 2006
Posts: 5179
Location: Rochester, NY, USA

PostPosted: Sun Oct 28, 2012 1:45 am    Post subject: Reply with quote

Quote:
The Eureka notation is not a frozen standard and is still evolving specifically in handling complex components like AURs, basic patterns and ALSs.

The two rules to remember are
1) start and end with a strong link
2) alternate strong link => weak link => strong link, etc.

I will attempt to answer any specific questions. Others on this site with much greater knowledge will also help.


Ted, you are Professor of Eureka at Sudoku University. Laughing
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tlanglet



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

PostPosted: Sun Oct 28, 2012 2:41 am    Post subject: Reply with quote

Kind words Marty .

A gross exaggeration at best but I think you have been into the Scotch.

Ted
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tlanglet



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

PostPosted: Tue Nov 20, 2012 4:55 am    Post subject: Reply with quote

keith wrote:
tlanglet wrote:
keith wrote:
I have put the Sudopedia entry for Eureka notation here:

http://www.dailysudoku.com/sudoku/forums/viewtopic.php?t=6708

Keith


Thank you very much...... Very Happy


Not a problem. After Sudopedia first went offline and came back, I made a copy of the site. Now, the site is completely trashed.

I have my copy, and it works fine, but I have not been able to share it with anyone else.

I can, however, copy and post particular Sudopedia articles on this site. Just ask.

Keith


Hi Keith
,

I would appreciate your assistance to determine the Sudopedia name for the pattern I posted here, Is it called a Kraken x-wing, a fin transport x-wing or still some other name.

Appreciate ............

Ted
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keith



Joined: 19 Sep 2005
Posts: 3184
Location: near Detroit, Michigan, USA

PostPosted: Wed Nov 21, 2012 7:40 am    Post subject: Reply with quote

tlanglet wrote:
Hi Keith,

I would appreciate your assistance to determine the Sudopedia name for the pattern I posted here, Is it called a Kraken x-wing, a fin transport x-wing or still some other name.

Appreciate ............

Ted


Done
http://www.dailysudoku.com/sudoku/forums/viewtopic.php?t=6739

Please add comments and examples.

Keith
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