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Puzzle VH_055

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Thu Jul 09, 2009 5:14 pm    Post subject: Puzzle VH_055 Reply with quote
Code:
 +-----------------------+
 | 2 3 . | . 6 9 | . . . |
 | 6 . . | . . . | 5 . . |
 | . . 8 | . 5 1 | 4 . 3 |
 |-------+-------+-------|
 | . . . | . . . | . . 1 |
 | 3 . 6 | . 9 . | . . . |
 | 4 . 9 | . . 3 | . . 5 |
 |-------+-------+-------|
 | . 6 3 | . . . | . . 8 |
 | . . . | . . . | . 3 . |
 | . . 4 | 3 . 8 | 1 . . |
 +-----------------------+

Play this puzzle online at the Daily Sudoku site
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arkietech



Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
PostPosted: Thu Jul 09, 2009 7:44 pm    Post subject: Reply with quote
Two steps:
Quote:
xy-wing 827
ur 79
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Fri Jul 10, 2009 1:51 am    Post subject: Reply with quote
A single stepper:
Quote:
UR 79 in r39c12. To break up the UR, either r9c12=5 or r9c2=2
(2)r9c2 - (2)r8c3 = (2)r4c3 - (2)r4c56 = (2)r6c5,
(5)r9c12 - (5=7)r9c8 - (7=8)r6c8 - (8=2) r6c5.
Thus all the three possibilities to break up the UR force r6c5=2, which completes the puzzle.

Ted
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arkietech



Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
PostPosted: Fri Jul 10, 2009 2:33 am    Post subject: Reply with quote
Ted,

Cool! Very Happy

Nice find
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