Stuck on Giant Book of Sudoku 240 "Beware Very Challeng

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Stuck on Giant Book of Sudoku 240 "Beware Very Challeng

Postby Sparky » Sat Jun 17, 2006 2:22 am

Code: Select all
Code:

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




With Pencilmarks:
Code: Select all

2    47    1   |  4679   467   3679 |  5     349     8
3    5     478 |  4789   478   2789 |  6     249     1
6    48    9   |  15     15    238  |  234   7       234
---------------|--------------------|----------------------
79   2679  27  |  189    3     4    |  17    2568    256
5    34679 347 |  2      18    89   |  17    3468    346   
8    1     234 |  67     67    5    |  234   234     9
---------------|--------------------|-----------------------
4    38    358 |  568    2     68   |  9     1       7
79   279   257 |  457    457   1    |  8     36      36
1    78    6   |  3      9     78   |  24    245    245





Can someone help me with this puzzle? This is my first posting on this web site.
Sparky
 
Posts: 2
Joined: 16 June 2006

Postby MCC » Sat Jun 17, 2006 9:01 am

Hi Sparky
There's a naked triple in column 2 that should start to get things moving.


MCC
MCC
 
Posts: 1275
Joined: 08 June 2005

Postby Sparky » Sat Jun 17, 2006 7:09 pm

Thank you! I've stared at this puzzle for a long time, and didn't see that.
Sparky
 
Posts: 2
Joined: 16 June 2006


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