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Free Press Jan 1, 2010

 
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keith



Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
PostPosted: Fri Jan 01, 2010 4:14 pm    Post subject: Free Press Jan 1, 2010 Reply with quote
Looks to be another unreasonable one.
Code:
Puzzle: FP010110
+-------+-------+-------+
| . . . | . 8 . | . 3 7 |
| 3 . . | 4 . 1 | . . . |
| . . 1 | 7 . . | 2 . 6 |
+-------+-------+-------+
| . . . | 9 . . | 8 . . |
| . 6 . | 5 . . | . 7 . |
| . . 5 | . . 4 | . . . |
+-------+-------+-------+
| 5 . 9 | 3 . . | . . . |
| . . . | 1 . 2 | . . 5 |
| 7 1 . | . 5 . | . . . |
+-------+-------+-------+
Keith

Last edited by keith on Sat Jan 02, 2010 3:30 am; edited 2 times in total
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Fri Jan 01, 2010 6:11 pm    Post subject: Reply with quote
Actually, very reasonable.

Quote:
ER (6), XY (682) plus two pincer transports, Hidden UR (59), perhaps not necessary
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arkietech



Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
PostPosted: Sat Jan 02, 2010 1:03 am    Post subject: Reply with quote
Marty R. wrote:
ER (6), XY (682) plus two pincer transports, Hidden UR (59), perhaps not necessary

I got here after the er or skyscraper 6:
Code:
 *--------------------------------------------------------------------*
 | 2469   2459   246    | 26     8      59     | 1      3      7      |
 | 3      27     267    | 4      26     1      | 5      89     89     |
 | 89     589    1      | 7      39     359    | 2      4      6      |
 |----------------------+----------------------+----------------------|
 | 124    2347   2347   | 9      12367  367    | 8      5      1234   |
 | 12489  6      2348   | 5      123    38     | 349    7      12349  |
 | 1289   23789  5      | 28     1237   4      | 369    126    1239   |
 |----------------------+----------------------+----------------------|
 | 5      248    9      | 3      467    678    | 467    126    1248   |
 | 468    348    3468   | 1      479    2      | 3479   89     5      |
 | 7      1      2348   | 68     5      689    | 3469   26     23489  |
 *--------------------------------------------------------------------*

I don't see the xy-wing and the hidden ur stays hidden to me. Can anyone help me?
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Sat Jan 02, 2010 1:06 am    Post subject: Reply with quote
arkietech wrote:
Marty R. wrote:
ER (6), XY (682) plus two pincer transports, Hidden UR (59), perhaps not necessary

I got here after the er or skyscraper 6:
Code:
 *--------------------------------------------------------------------*
 | 2469   2459   246    | 26     8      59     | 1      3      7      |
 | 3      27     267    | 4      26     1      | 5      89     89     |
 | 89     589    1      | 7      39     359    | 2      4      6      |
 |----------------------+----------------------+----------------------|
 | 124    2347   2347   | 9      12367  367    | 8      5      1234   |
 | 12489  6      2348   | 5      123    38     | 349    7      12349  |
 | 1289   23789  5      | 28     1237   4      | 369    126    1239   |
 |----------------------+----------------------+----------------------|
 | 5      248    9      | 3      467    678    | 467    126    1248   |
 | 468    348    3468   | 1      479    2      | 3479   89     5      |
 | 7      1      2348   | 68     5      689    | 3469   26     23489  |
 *--------------------------------------------------------------------*

I don't see the xy-wing and the hidden ur stays hidden to me. Can anyone help me?


The Wing is pivoted in r9c4 and the Hidden UR on 59 is because the 5 is a strong link in both c2 and r3, eliminating the 9 from r3c2.
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keith



Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
PostPosted: Sat Jan 02, 2010 2:24 am    Post subject: Reply with quote
Marty R. wrote:
arkietech wrote:
Marty R. wrote:
ER (6), XY (682) plus two pincer transports, Hidden UR (59), perhaps not necessary

I got here after the er or skyscraper 6:
Code:
 *--------------------------------------------------------------------*
 | 2469   2459   246    | 26     8      59     | 1      3      7      |
 | 3      27     267    | 4      26     1      | 5      89     89     |
 | 89     589    1      | 7      39     359    | 2      4      6      |
 |----------------------+----------------------+----------------------|
 | 124    2347   2347   | 9      12367  367    | 8      5      1234   |
 | 12489  6      2348   | 5      123    38     | 349    7      12349  |
 | 1289   23789  5      | 28     1237   4      | 369    126    1239   |
 |----------------------+----------------------+----------------------|
 | 5      248    9      | 3      467    678    | 467    126    1248   |
 | 468    348    3468   | 1      479    2      | 3479   89     5      |
 | 7      1      2348   | 68     5      689    | 3469   26     23489  |
 *--------------------------------------------------------------------*

I don't see the xy-wing and the hidden ur stays hidden to me. Can anyone help me?


The Wing is pivoted in r9c4 and the Hidden UR on 59 is because the 5 is a strong link in both c2 and r3, eliminating the 9 from r3c2.


Or, the W-wing 26 with pincer transport takes out 2 in R2C2, eventually leaving an XY-wing 2-46.

Keith
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arkietech



Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
PostPosted: Sat Jan 02, 2010 2:48 am    Post subject: Reply with quote
Thanks. xy-wings with a weak link (both pinchers can be 2) throw me every time. Nice find!
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Sat Jan 02, 2010 4:56 am    Post subject: Reply with quote
Quote:
Or, the W-wing 26 with pincer transport takes out 2 in R2C2, eventually leaving an XY-wing 2-46.

Keith, I don't see it. I see it taking out the 2 from r6c8 but can't see further transport.
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keith



Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
PostPosted: Sat Jan 02, 2010 2:29 pm    Post subject: Reply with quote
Marty,

I should have been more precise.

After basics:
Code:
+-------------------+-------------------+-------------------+
| 2469# 2459  246   | 26@   8     59    | 1     3     7     |
| 3     27    267   | 4     26    1     | 5     89    89    |
| 89    589   1     | 7     39    359   | 2     4     6     |
+-------------------+-------------------+-------------------+
| 124   2347  2347  | 9     12367 367   | 8     5     1234  |
| 12489 6     2348  | 5     123   38    | 349   7     12349 |
| 1289  23789 5     | 28    1237  4     | 369   1269  1239  |
+-------------------+-------------------+-------------------+
| 5     248   9     | 3     467   678   | 467   1268  1248  |
| 468#  348   3468  | 1    4-679  2     | 34679 689   5     |
| 7     1    234-68 | 68@   5     689   | 3469  2689  23489 |
+-------------------+-------------------+-------------------+
The SS takes out 6 as shown, leading to:
Code:
+-------------------+-------------------+-------------------+
| 2469  2459  246   | 26    8     59    | 1     3     7     |
| 3     27    267   | 4     26    1     | 5     89    89    |
| 89    589   1     | 7     39    359   | 2     4     6     |
+-------------------+-------------------+-------------------+
| 124   2347  2347  | 9     12367 367   | 8     5     1234  |
| 12489 6     2348  | 5     123   38    | 349   7     12349 |
| 1289  23789 5     | 28#   1237  4     | 369  1-26   1239  |
+-------------------+-------------------+-------------------+
| 5     248   9     | 3     467   678   | 467   126   1248  |
| 468   348   3468  | 1     479   2     | 3479  89    5     |
| 7     1     2348  | 68@   5     689   | 3469  26#   23489 |
+-------------------+-------------------+-------------------+
An XY-wing takes out 2 in R6C8, then:
Code:
+-------------------+-------------------+-------------------+
| 2469  2459  246   | 26@   8     59    | 1     3     7     |
| 3    -27    267   | 4     26a   1     | 5     89    89    |
| 89    589   1     | 7     39    359   | 2     4     6     |
+-------------------+-------------------+-------------------+
| 124   2347  2347  | 9     12367 367   | 8     5     1234  |
| 12489 6     2348  | 5     123   38    | 349   7     12349 |
| 1289  23789 5     | 28    1237  4     | 369   16    1239  |
+-------------------+-------------------+-------------------+
| 5     248d  9     | 3     467   678   | 467   126c  148   |
| 468   348   3468  | 1     479   2     | 3479  89    5     |
| 7     1     2348  | 68@   5     689   | 3469  26b   3489  |
+-------------------+-------------------+-------------------+
a and b are the W-wing pincers. b is extended via c to d, eliminating 2 in R2C2. More basics lead to:
Code:
+----------------+----------------+----------------+
| 249  2459 246  | 26   8    59   | 1    3    7    |
| 3    7    26   | 4    26   1    | 5    89   89   |
| 89   589  1    | 7    39   359  | 2    4    6    |
+----------------+----------------+----------------+
| 124  234  7    | 9    1236 36   | 8    5    1234 |
| 1249 6    38   | 5    12   38   | 49   7    1249 |
| 1289 2389 5    | 28   7    4    | 369  16   1239 |
+----------------+----------------+----------------+
| 5    28   9    | 3    46   7    | 46#  12   18   |
| 6    348  38   | 1    49   2    | 7    89   5    |
| 7    1    24#  | 68   5    689  |3-469 26@ 3-49  |
+----------------+----------------+----------------+
where another XY-wing solves it.

Marty, thank you for prompting me to go back and take another look at this one.

Keith
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Sat Jan 02, 2010 4:44 pm    Post subject: Reply with quote
Keith, I can see that. When I read your original comments I was looking at a grid with more 2s remaining in box 9.
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