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Puzzle 11/07/07: ~ Extreme (?)

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Thu Jul 07, 2011 11:10 pm    Post subject: Puzzle 11/07/07: ~ Extreme (?) Reply with quote
Code:
 +-----------------------+
 | . . . | . 7 8 | 1 4 . |
 | . . . | . 1 . | 7 . . |
 | . . 4 | 5 . . | . . . |
 |-------+-------+-------|
 | . . 6 | 8 . . | 2 7 . |
 | 2 9 . | . . . | . 6 . |
 | 1 . . | . . 4 | . 9 . |
 |-------+-------+-------|
 | 8 6 . | 1 . . | 5 . . |
 | 4 . . | 6 8 2 | . . . |
 | . . . | . . . | . . 6 |
 +-----------------------+

Play this puzzle online at the Daily Sudoku site
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JC Van Hay



Joined: 13 Jun 2010
Posts: 494
Location: Charleroi, Belgium
PostPosted: Fri Jul 08, 2011 6:49 am    Post subject: Reply with quote
Quote:
X Chain on 3s : 3r1c4=3r3c6-3r3c89=3r12c9-3r4c9=3r4c56 => -3r5c4
Skyscraper 9C14 => -9r1c3
(27=1)r9c23-(1=52)r81c3 or (2=7)r9c2-(7=152)r189c3 => -2r7c3
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Fri Jul 08, 2011 1:25 pm    Post subject: Reply with quote
Quote:
anp(39=7)r19c4-(7=39)r73c6-(39=1)r4c6-(1=3)r4c9-r123c9=r3c8-r3c6=(3)r1c4; r5c4<>3=7
An 8-cell RP(39) plus a BUG+1 completes the puzzle.

Ted
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Fri Jul 08, 2011 1:41 pm    Post subject: Reply with quote
JC.

I just looked at your post and realized that our first steps resulted in the same deletion, but yours was definitely more direct. I am frequently surprised that the same logic/path is used by different folks in solving a puzzle; such events make life interesting.

Ted
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Mon Jul 11, 2011 4:46 am    Post subject: Reply with quote
W-Wing (38), SL 8, c9, flightless with transport; r5c4<>3
Remote Pairs (39); r1c2<>3, r1c3<>39
BUG+1
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