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Set G Puzzle 66

 
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daj95376



Joined: 23 Aug 2008
Posts: 3855

PostPosted: Fri Dec 19, 2008 10:20 pm    Post subject: Set G Puzzle 66 Reply with quote

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

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



Joined: 12 Feb 2006
Posts: 5122
Location: Rochester, NY, USA

PostPosted: Sat Dec 20, 2008 5:41 am    Post subject: Reply with quote

XY-Wing, M-Wing, pincer transport on same and an XYZ-Wing.
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storm_norm



Joined: 18 Oct 2007
Posts: 1741

PostPosted: Sat Dec 20, 2008 6:46 am    Post subject: Reply with quote

Code:
.------------------.------------------.------------------.
| 9    *36    4    | 8     7     36   | 5     2     1    |
|#37    137   2    | 1359  19    1359 | 6     4     8    |
| 5    *16    8    |-14    2     146  | 7     3     9    |
:------------------+------------------+------------------:
| 2     58    6    | 157   3     1578 | 18    9     4    |
| 4     589   7    | 2     19    1589 | 18    6     3    |
|#13    89   #13   | 49    6     489  | 2     5     7    |
:------------------+------------------+------------------:
| 17    2     5    | 179   4     179  | 3     8     6    |
| 8     37    9    | 6     5     37   | 4     1     2    |
| 6     4    #13   |*13    8     2    | 9     7     5    |
'------------------'------------------'------------------'

marked above
# - is a useless kite on 3's
see's the (3,6) cell at r1c2 and the (1,3) cell at r9c4, so either the 6 in r1c2 is true or the 1 in r9c4 is true

a little extension to the (6,1) cell at r3c2 makes the 1 in that cell true. eliminates the 1 in r3c4

singles follow.
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