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Puzzle 10/04/12 (B)

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Mon Apr 12, 2010 2:11 pm    Post subject: Puzzle 10/04/12 (B) Reply with quote
Code:
 +-----------------------+
 | 3 . . | 1 4 . | . . . |
 | . . . | 8 5 2 | . . 4 |
 | . . 8 | . . . | . . 1 |
 |-------+-------+-------|
 | 7 5 . | 4 . . | 9 1 . |
 | 1 3 . | . 9 . | . 5 . |
 | . 9 . | . . 1 | . . 7 |
 |-------+-------+-------|
 | . . . | 6 . . | 4 . . |
 | . . . | 3 8 . | . . . |
 | . 8 1 | . . 5 | . . 3 |
 +-----------------------+

Play this puzzle online at the Daily Sudoku site
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Mogulmeister



Joined: 03 May 2007
Posts: 1151
PostPosted: Mon Apr 12, 2010 2:48 pm    Post subject: Reply with quote
This was an absolute bear for me with many steps/chain attempts until:

Quote:
UR <26> made r5c5 = 3
Then an XY-wing <267> removing 7 from r3c4


Definitely a case of keeping it simple (for me).
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Mon Apr 12, 2010 5:11 pm    Post subject: Reply with quote
Two steps.

Quote:
ALS2367 in r346c5
ALS[(7)r3c4 = (2)r46c5]r346c5 - (2=7)r5c4; r3c4<>7

xy-wing 2-78 with vertex in r1c8; r7c2<>7.


Ted
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Tue Apr 13, 2010 10:47 pm    Post subject: Reply with quote
Two different steps.

M-Wing (27)

W-Wing (25), flightless with pincer transport
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