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Free Press July 6, 2012

 
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keith



Joined: 19 Sep 2005
Posts: 3179
Location: near Detroit, Michigan, USA

PostPosted: Fri Jul 06, 2012 10:22 pm    Post subject: Free Press July 6, 2012 Reply with quote

The Friday puzzle:
Code:
Puzzle: FP070612
+-------+-------+-------+
| . 2 . | . 6 1 | . 3 . |
| . 8 . | . . . | . 4 5 |
| . . . | 9 . . | . . 7 |
+-------+-------+-------+
| . 5 . | 8 . 9 | 7 . . |
| . . . | . 2 . | . . . |
| . . 3 | . . 5 | . 2 . |
+-------+-------+-------+
| 4 . . | . . 3 | . . . |
| 7 1 . | . . . | . 8 . |
| . . . | 6 1 . | . 7 . |
+-------+-------+-------+

Play this puzzle online at the Daily Sudoku site

Keith
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Marty R.



Joined: 12 Feb 2006
Posts: 5165
Location: Rochester, NY, USA

PostPosted: Sat Jul 07, 2012 3:42 pm    Post subject: Reply with quote

This was troublesome. Without the details:

UR 24 boxes 89; common outcomes
Remote Pairs (16)
Type 4 UR (26)
Skyscraper (6)
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keith



Joined: 19 Sep 2005
Posts: 3179
Location: near Detroit, Michigan, USA

PostPosted: Sat Jun 15, 2013 3:25 pm    Post subject: Reply with quote

(Bump. Note the original date)

After basics
Code:
+-------------------+-------------------+-------------------+
| 5     2     7     | 4     6     1     | 89    3     89    |
| 169   8     169   | 2     3     7     | 16    4     5     |
| 136   346   146   | 9     5     8     | 2     16    7     |
+-------------------+-------------------+-------------------+
| 126   5     126   | 8     4     9     | 7     16    3     |
| 189   7     1489  | 3     2     6     | 14589 59    1489  |
| 689   469   3     | 1     7     5     | 4689  2     4689  |
+-------------------+-------------------+-------------------+
| 4     69    2569  | 7     8     3     | 1569  59    1269  |
| 7     1     26    | 5     9     24    | 3     8     246   |
| 2389  39    2589  | 6     1     24    | 459   7     249   |
+-------------------+-------------------+-------------------+

This one has me stumped. Marty's common outcome for the 24 UR is R9C6=2.

Any other solutions?

Keith
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JC Van Hay



Joined: 13 Jun 2010
Posts: 372
Location: Charleroi, Belgium

PostPosted: Sat Jun 15, 2013 5:53 pm    Post subject: Reply with quote

#1. Basics : 21 Singles; NP(16)r34c8/HP(59)r57c8; SF(6R8C28) : K(6R8C2)=6r3c2-6r3c8=6r4c8 :=> -6r6c9; LC(6C9) :=> -6r7c7
Code:
+--------------------+----------+--------------------+
| 5      2    7      | 4  6  1  | 89     3   89      |
| 169    8    169    | 2  3  7  | 169    4   5       |
| 136    346  146    | 9  5  8  | 2      16  7       |
+--------------------+----------+--------------------+
| 126    5    16-2   | 8  4  9  | 7      16  3       |
| 189    7    1489   | 3  2  6  | 14589  59  1489    |
| 689    469  3      | 1  7  5  | 4689   2   489     |
+--------------------+----------+--------------------+
| 4      69   569(2) | 7  8  3  | 159    59  -19(26) |
| 7      1    (26)   | 5  9  24 | 3      8   24(6)   |
| 389-2  39   589-2  | 6  1  24 | 459    7   249     |
+--------------------+----------+--------------------+
#2. Loop[3] : 2r7c9=2r7c3-(2=6)r8c3-6r8c9=6r7c9 @ :=> -2r4c3.r9c13, -19r7c9; 9 Singles
#3. Chain[4] : 4r7c79=UR(89)r16c79 :=> r5c3=4; ste
[edit: r5c3=4 instead of =8!]


Last edited by JC Van Hay on Sun Jun 16, 2013 3:02 pm; edited 1 time in total
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aran



Joined: 19 Apr 2010
Posts: 70

PostPosted: Sun Jun 16, 2013 12:32 pm    Post subject: Reply with quote

Code:
*--------------------------------------------------------------------*
 | 5      2      7      | 4      6      1      | 89     3      89     |
 | 169    8      169    | 2      3      7      | 16     4      5      |
 | 136    346    146    | 9      5      8      | 2      16     7      |
 |----------------------+----------------------+----------------------|
 | 126    5      126    | 8      4      9      | 7      16     3      |
 | 189    7      1489   | 3      2      6      | 14589  59     1489   |
 | 689    469    3      | 1      7      5      | 4689   2      4689   |
 |----------------------+----------------------+----------------------|
 | 4      69     2569   | 7      8      3      | 1569   59     1269   |
 | 7      1      26     | 5      9      24     | 3      8      246    |
 | 2389   39     2589   | 6      1      24     | 459    7      249    |
 *--------------------------------------------------------------------

4r5c3=r6c2-UR89r16c79=6r6c79-(6=1)r4c8-r5c9=(1-2)r7c9=26r78c3-(26=1)r4c3 : =>r5c3=4 ste
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