Missing something obvious? Hard puzzle

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Missing something obvious? Hard puzzle

Postby luvsudoku » Fri Feb 03, 2006 11:31 pm

Original puzzle:
Code: Select all
 
. 3 7 | . . . | 4 . .
. . 8 | 7 . . | 1 . .
. . . | 9 . . | . 6 .
--------------------
2 . . | . 1 4 | . 9 .
. . 5 | . . . | 3 . .
. 1 . | 8 3 . | . . 7
--------------------
. 8 . | . . 7 | . . .
. . 1 | . . 2 | 9 . .
. . 4 | . . . | 5 8 .


I got to:
Code: Select all
569   3     7     | 156   256   1568   | 4     25    2589
4569  4569  8     | 7     2456  356    | 1     235   2359
1     45    2     | 9     45     38    | 7     6     38
-------------------------------------------------------------
2     7     3     | 56    1     4      | 8     9     56
8     469   5     | 2     7     69     | 3     14     146
469    1    69    | 8     3     569    | 26    245   7
-------------------------------------------------------------
3569  8     69    | 13456 56    7      | 26    1234  12346
356   56    1     | 3456  8     2      | 9     7      346
7     2     4     | 136   9     16     | 5      8      136


I'm hoping there's some hidden pair or xwing I'm just not seeing.....
luvsudoku
 
Posts: 10
Joined: 29 January 2006

Postby TKiel » Fri Feb 03, 2006 11:46 pm

There is an x-wing.

Tracy

P.s. I didn't mention the number 'cuz I thought you might want to find it yourself. The x-wing does not solve the puzzle directly. (edit: yes it does. I saw a naked double in box 2 before I saw the single and assumed it led to the single. Silly me.)
Last edited by TKiel on Fri Feb 03, 2006 8:14 pm, edited 1 time in total.
TKiel
 
Posts: 209
Joined: 05 January 2006

Re: Missing something obvious? Hard puzzle

Postby Crazy Girl » Sat Feb 04, 2006 12:04 am

luvsudoku wrote:I got to:
Code: Select all
569   3     7   | 156   256   1568  | 4     25    2589
4569  4569  8   | 7     2456  356   | 1     235   2359
1     45    2   | 9     45    38    | 7     6     38
----------------+-------------------+--------------------
2     7     3   | 56    1     4     | 8     9     56
8     469   5   | 2     7     69    | 3     14    146
469    1    69  | 8     3     569   | 26    245   7
----------------+-------------------+--------------------
3569  8     69  | 13456 56    7     | 26    1234  12346
356   56    1   | 3456  8     2     | 9     7     346
7     2     4   | 136   9     16    | 5     8     136


I'm hoping there's some hidden pair or xwing I'm just not seeing.....


There is a X - Wing that will lead to finding a Naked Single. After this all you need is Hidden or Naked Singles to solve the puzzle:D
Crazy Girl
 
Posts: 189
Joined: 08 November 2005

Thanks!!

Postby luvsudoku » Sat Feb 04, 2006 1:08 am

I'm glad you didn't tell me!
It made me look again, and then I was like DUH.

Way cool.... thanks!
luvsudoku
 
Posts: 10
Joined: 29 January 2006


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