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Free Press September 28, 2012

 
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keith



Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
PostPosted: Sat Sep 29, 2012 2:19 pm    Post subject: Free Press September 28, 2012 Reply with quote
Not yet started ....
Code:
Puzzle: FP092812
+-------+-------+-------+
| . . 6 | 1 . 9 | . . . |
| 5 . . | . . . | 6 4 . |
| . . . | . 6 . | 3 . . |
+-------+-------+-------+
| . 5 . | . 3 . | . . 9 |
| . . 1 | 5 . 4 | 7 . . |
| 6 . . | . 1 . | . 8 . |
+-------+-------+-------+
| . . 8 | . 4 . | . . . |
| . 2 3 | . . . | . . 4 |
| . . . | 7 . 8 | 9 . 3 |
+-------+-------+-------+

Play this puzzle online at the Daily Sudoku site

Keith
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Sat Sep 29, 2012 9:54 pm    Post subject: Reply with quote
Code:
+----------------+----------------+----------------+
| 3    4     6   | 1   -578  9    | 25  257   2578 |
| 5    1789  279 | 238  78   23   | 6   4     178  |
| 178  178  E27  | 4    6   F25   | 3   9     1578 |
+----------------+----------------+----------------+
| 78   5    D47  | 268  3    267  | 124 12    9    |
| 2   C89    1   | 5   B89   4    | 7   3     6    |
| 6    3    D479 | 29   1    27   | 245 8     25   |
+----------------+----------------+----------------+
| 179  167   8   | 369  4    13-56| 125 12567 257  |
| 179  2     3   | 69  A59   1-56 | 8   1567  4    |
| 4    16    5   | 7    2    8    | 9   16    3    |
+----------------+----------------+----------------+


I spent half the day unsuccessfully looking for what I call a pattern-based move.

AIC: A=9-->F=5 via ABCDEF; r1c5, r78c6<>5.
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Sun Sep 30, 2012 1:16 pm    Post subject: Reply with quote
Found this while looking for xy-wings......

ANP(8=23): [(8)r2c4-r12c5=r5c5-(8=9)r5c2-r2c2=9r2c3; => -2r2c3] = [ls(23)r2c46; => -2r2c3]; => -2r2c3

Ted
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