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Puzzle 11/06/01: ~ Advanced

 
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daj95376



Joined: 23 Aug 2008
Posts: 3855

PostPosted: Thu Jun 02, 2011 2:23 am    Post subject: Puzzle 11/06/01: ~ Advanced Reply with quote

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

Play this puzzle online at the Daily Sudoku site
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Marty R.



Joined: 12 Feb 2006
Posts: 5178
Location: Rochester, NY, USA

PostPosted: Sat Jun 04, 2011 6:10 pm    Post subject: Reply with quote

Quote:
I guess the 06/01 Advanced puzzle was harder than I expected.

You'd get no argument from me.

After three ERs (2,1,1) I saw nothing, so I Medusa'ed it, which means I basically gave up. A couple of traps and a wrap reduced the grid to where Remote Pairs (12); r4c6<>2 finished it up.
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daj95376



Joined: 23 Aug 2008
Posts: 3855

PostPosted: Sat Jun 04, 2011 6:34 pm    Post subject: Reply with quote

Yes, it turns out that a couple of my solver's steps were difficult to locate. Sorry!!!

Code:
 +-----------------------------------------------------------------------+
 |  9      15     4      |  8      3      156    |  156    7      2      |
 |  157    3      127    |  12456  15     12456  |  8      9      56     |
 |  8      125    6      |  7      9      125    |  3      15     4      |
 |-----------------------+-----------------------+-----------------------|
 |  156    8      12     |  1259   7      125    |  24569  2345   356    |
 |  4      1259   3      |  1259   6      8      |  259    25     7      |
 |  567    2569   27     |  2359   4      235    |  2569   8      1      |
 |-----------------------+-----------------------+-----------------------|
 |  126    7      8      |  13456  15     13456  |  1245   12345  9      |
 |  12     4      9      |  135    8      7      |  125    6      35     |
 |  3      16     5      |  146    2      9      |  7      14     8      |
 +-----------------------------------------------------------------------+
 # 92 eliminations remain

 r5c3    2-String Kite                   <> 1    r2c4   extraneous
   c3b2  Empty Rectangle                 <> 1    r4c6

 r9c7    2-String Kite                   <> 1    r1c2
 r8c5    2-String Kite                   <> 5    r2c9

 RP (2=1)r3c6 - (1=2)r3c2 - (2=1)r2c3 - (1=2)r4c3  =>  r4c6<>2
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