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Free Press 30 April, 2009

 
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keith



Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA

PostPosted: Fri May 01, 2009 5:18 pm    Post subject: Free Press 30 April, 2009 Reply with quote

The Thursday puzzle is more difficult than Friday's.
Code:
Puzzle: FP043009
+-------+-------+-------+
| 2 . . | . 9 . | . . . |
| . . 3 | . 8 . | 4 . . |
| . . 5 | 6 . 7 | . . 9 |
+-------+-------+-------+
| 8 . . | . . 9 | . . . |
| . . . | . 7 4 | . . . |
| . . . | 2 . . | . . 1 |
+-------+-------+-------+
| 5 . . | . . 6 | 7 . . |
| . . 4 | . 5 . | 6 . . |
| 1 . . | . 2 . | . . 3 |
+-------+-------+-------+
Keith
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arkietech



Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA

PostPosted: Fri May 01, 2009 7:49 pm    Post subject: Reply with quote

I used
Quote:
Skyscraper 5
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA

PostPosted: Fri May 01, 2009 9:05 pm    Post subject: Reply with quote

I used a useless Type 1 UR on 28. Then simple coloring on 5, perhaps the same as Dan's skyscraper, but it didn't take me to the finish line, but it did expose a puzzle-ending W-Wing on 39.
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arkietech



Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA

PostPosted: Fri May 01, 2009 9:27 pm    Post subject: Reply with quote

Marty R. wrote:
I used a useless Type 1 UR on 28. Then simple coloring on 5, perhaps the same as Dan's skyscraper, but it didn't take me to the finish line, but it did expose a puzzle-ending W-Wing on 39.


my skyscraper:
Code:
 
 *-----------------------------------------------------------------------------*
 | 2       1678    1678    | 4       9      *135     | 138     38     *567     |
 | 679     1679    3       | 15      8       2       | 4       6-5     567     |
 | 4       18      5       | 6       13      7       | 1238    238     9       |
 |-------------------------+-------------------------+-------------------------|
 | 8       23567   267     | 135     136     9       | 23      23567   4       |
 | 369     123569  1269    | 8       7       4       | 239     2356    6-5     |
 | 3679    4       679     | 2       36     *35      | 389    *35678   1       |
 |-------------------------+-------------------------+-------------------------|
 | 5       2389    289     | 139     4       6       | 7       19      28      |
 | 379     28      4       | 1379    5       13      | 6       19      28      |
 | 1       679     679     | 79      2       8       | 5       4       3       |
 *-----------------------------------------------------------------------------*

solves the puzzle.
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keith



Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA

PostPosted: Fri May 01, 2009 10:51 pm    Post subject: Reply with quote

Similar to what Dan did:
Code:
+----------------------+----------------------+----------------------+
| 2      1678   1678   | 4      9      135    | 138    38    5-67    |
| 679    1679   3      | 15a    8      2      | 4      56@   5-67    |
| 4      18     5      | 6      13     7      | 1238   238    9      |
+----------------------+----------------------+----------------------+
| 8      23567c 267    | 135b   136    9      | 23    235-67  4      |
| 369   123569d 1269   | 8      7      4      | 239   235-6   56@    |
| 3679   4      679    | 2      36     35     | 389   35-678  1      |
+----------------------+----------------------+----------------------+
| 5      2389   289    | 139    4      6      | 7      19     28     |
| 379    28     4      | 1379   5      13     | 6      19     28     |
| 1      679    679    | 79     2      8      | 5      4      3      |
+----------------------+----------------------+----------------------+

The cells 56@ are a W-wing connected by the chain abcd on 5. Eliminating 6 as shown.

Keith
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA

PostPosted: Sat May 02, 2009 12:31 am    Post subject: Reply with quote

Nice find Keith.

Dan, I don't know if my grid was the same as yours, but my coloring took out the same 5 from r5c9.
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