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Free Press September 20, 2013

 
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keith



Joined: 19 Sep 2005
Posts: 3174
Location: near Detroit, Michigan, USA

PostPosted: Sat Sep 21, 2013 3:03 pm    Post subject: Free Press September 20, 2013 Reply with quote

Not yet completed:

Code:
Puzzle: FP092013
+-------+-------+-------+
| . . 1 | 8 . . | 3 5 . |
| . . 8 | . . 2 | 7 . . |
| . . . | . 4 . | . 1 . |
+-------+-------+-------+
| . . . | 1 . . | 6 . . |
| 3 . . | 4 . 6 | . . 8 |
| . . 4 | . . 8 | . . . |
+-------+-------+-------+
| 7 5 . | . 3 . | . . . |
| . . 3 | 5 . . | 2 . . |
| . 9 6 | . . 7 | 5 . . |
+-------+-------+-------+

Play this puzzle online at the Daily Sudoku site

Keith
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arkietech



Joined: 31 Jul 2008
Posts: 1725
Location: Northwest Arkansas USA

PostPosted: Sat Sep 21, 2013 5:54 pm    Post subject: Reply with quote

a remote pair and a pair of w-wings got me here:

Code:
 *-----------------------------------------------------------*
 |b26    2467  1     | 8     67    9     | 3     5     46    |
 | 5     46    8     | 3     1     2     | 7     69    469   |
 |c69    3    c79    | 6-7   4     5     | 8     1     2     |
 |-------------------+-------------------+-------------------|
 | 289   278   79    | 1     27    3     | 6     4     5     |
 | 3     127   5     | 4     279   6     | 19    27    8     |
 |b126   1267  4     |a79    5     8     |a19    27    3     |
 |-------------------+-------------------+-------------------|
 | 7     5     2     | 69    3     1     | 4     8     69    |
 | 18    18    3     | 5     69    4     | 2     69    7     |
 | 4     9     6     | 2     8     7     | 5     3     1     |
 *-----------------------------------------------------------*
(7=1)r6c47-(1=26)r16-(6=7)r3c3 => -7r3c4; ste
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Marty R.



Joined: 12 Feb 2006
Posts: 5162
Location: Rochester, NY, USA

PostPosted: Sat Sep 21, 2013 6:56 pm    Post subject: Reply with quote

Code:

+--------------+-----------+------------+
| 26   2467 1  | 8   67  9 | 3  5   246 |
| 5    346  8  | 36  1   2 | 7  69  469 |
| 269  2367 79 | 367 4   5 | 8  1   269 |
+--------------+-----------+------------+
| 289  278  79 | 1   279 3 | 6  4   5   |
| 3    127  5  | 4   279 6 | 19 279 8   |
| 1269 1267 4  | 79  5   8 | 19 279 3   |
+--------------+-----------+------------+
| 7    5    2  | 69  3   1 | 4  8   69  |
| 18   18   3  | 5   69  4 | 2  69  7   |
| 4    9    6  | 2   8   7 | 5  3   1   |
+--------------+-----------+------------+

Play this puzzle online at the Daily Sudoku site

Disappointed that I couldn't find a good pattern-based solution.

(7=9)r6c4-(9=1)r6c7-(126=9)r613c1-(9=7)r3c3=>r3c4<>7
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keith



Joined: 19 Sep 2005
Posts: 3174
Location: near Detroit, Michigan, USA

PostPosted: Sun Sep 22, 2013 8:01 pm    Post subject: Reply with quote

Marty,

This may be "pattern based", but it's not pretty:
RNP 69
W -26
XY 67-9
XY -267
SS 6
SS 7
UR 26

Keith
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Marty R.



Joined: 12 Feb 2006
Posts: 5162
Location: Rochester, NY, USA

PostPosted: Sun Sep 22, 2013 9:17 pm    Post subject: Reply with quote

Keith I agree. As you probably realized, I had in mind a pattern-based solution of fewer steps.
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