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Set Q Puzzle 46

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854

PostPosted: Sun Mar 08, 2009 10:52 am    Post subject: Set Q Puzzle 46 Reply with quote

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

Play this puzzle online at the Daily Sudoku site
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storm_norm



Joined: 18 Oct 2007
Posts: 1741

PostPosted: Mon Mar 09, 2009 11:34 pm    Post subject: Reply with quote

UR, xyz-wing
then it gets interesting.

x-wing on 9's
w-wing {7,8} removes 7 from r9c4
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills

PostPosted: Tue Mar 10, 2009 4:17 pm    Post subject: Reply with quote

I started with a Type 1 UR 12,
a chain: (6=2)r1c9 - (2)r1c7 = (2)r8c7 - (2=3)r7c8 - (3=6)r4c8; r4c9<>6,
x-wing on 9,
Bug+1 completes the task.

Ted
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA

PostPosted: Wed Mar 11, 2009 12:19 am    Post subject: Reply with quote

I wanted to avoid the UR. XYZ-Wing on 278, then Skyscraper and multi-coloring on 2, then Remote Pairs on 89 and W-Wing on 78. The skyscraper and multi-coloring might not have been needed since I found a locked candidate that probably would have eliminated the 2s.
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