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Puzzle NR_028

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Mon May 25, 2009 7:28 am    Post subject: Puzzle NR_028 Reply with quote
Code:
 +-----------------------+
 | 3 . 5 | 1 7 . | . . 9 |
 | . 7 . | . 5 . | . . . |
 | 1 . 6 | . . . | 4 . . |
 |-------+-------+-------|
 | 7 . . | 2 9 . | . . . |
 | 2 3 . | 7 6 . | . 9 8 |
 | . . . | . . 1 | . . . |
 |-------+-------+-------|
 | . . 2 | . . . | 7 . 3 |
 | . . . | . 3 . | . 5 . |
 | 5 . . | . 1 . | 6 . . |
 +-----------------------+

Play this puzzle online at the Daily Sudoku site
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storm_norm



Joined: 18 Oct 2007
Posts: 1741
PostPosted: Tue May 26, 2009 1:34 am    Post subject: Reply with quote
xy-wing {148} removes 4 from r8c4
leads to this grid...
Code:
.---------------------.---------------------.---------------------.
| 3      2      5     | 1      7      4     | 8      6      9     |
| 4      7      89    | 689    5      689   |*23     123   1-2    |
| 1      89     6     | 389    2      389   | 4      7      5     |
:---------------------+---------------------+---------------------:
| 7      58     1     | 2      9      38    | 35     4      6     |
| 2      3      4     | 7      6      5     | 1      9      8     |
| 689   *5689   89    | 348    48     1     |*235    23     7     |
:---------------------+---------------------+---------------------:
| 689   *14689  2     | 5      48     689   | 7      18     3     |
| 68    *14     7     | 68     3      2     | 9      5     *14    |
| 5      489    3     | 489    1      7     | 6      28    *24    |
'---------------------'---------------------'---------------------'

this next chain is marked above
(2=4)r9c9 - (4)r8c9 = (4-1)r8c2 = (1-6)r7c2 = (6-5)r6c2 = (5-2)r6c7 = (2)r2c7; r2c9 <> 2
leads to
UR type 1 {2,3} removes 2 and 3 from r6c7
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Thu May 28, 2009 3:11 pm    Post subject: Reply with quote
I used XY (184), ER (Cool, Hidden UR (23), Finned X-Wing (9), Kite (Cool and XY (698) with pincer transport.
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