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Puzzle 10/09/12: C

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854

PostPosted: Sun Sep 12, 2010 4:09 am    Post subject: Puzzle 10/09/12: C Reply with quote

Several extraneous "turbot" steps, but one is important in my solution.

Code:
 +-----------------------+
 | . 5 . | . . 6 | 3 . 4 |
 | 6 8 . | . . . | . 5 9 |
 | . . 2 | . . . | . 6 . |
 |-------+-------+-------|
 | . . . | . . . | . 8 . |
 | . . . | . 1 . | . 3 . |
 | 8 . . | . . . | 1 . 6 |
 |-------+-------+-------|
 | 7 . . | . . 1 | 2 . . |
 | 3 9 8 | . 2 . | . . . |
 | 5 . . | . 7 9 | . . . |
 +-----------------------+

Play this puzzle online at the Daily Sudoku site


Rating wrote:
XY -- does not need chains
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storm_norm



Joined: 18 Oct 2007
Posts: 1741

PostPosted: Sun Sep 12, 2010 5:10 am    Post subject: Reply with quote

w-wing anyone?
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peterj



Joined: 26 Mar 2010
Posts: 974
Location: London, UK

PostPosted: Sun Sep 12, 2010 8:10 am    Post subject: Reply with quote

storm_norm wrote:
w-wing anyone?

Indeed - or a different m-wing if you prefer
Quote:
m-wing(43) (4=3)r6c2 - r3c2=(3-4)r2c3=r2c5 ; r6c5<>4
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JC Van Hay



Joined: 13 Jun 2010
Posts: 494
Location: Charleroi, Belgium

PostPosted: Sun Sep 12, 2010 12:06 pm    Post subject: Reply with quote

Equivalent, but elephant gun move ! ...
Quote:
Almost Remote Pairs : (34)R2C2 + Fin (7)r3c3-[3C3 AND (79)R1C3 (94)R3C1 4R2] : => r6c5<>34
[edit : corrected typo : I previously wrote 4C5 instead of 4R2 as the last SIS Sad ] Thanks, Danny, for checking !


Last edited by JC Van Hay on Sun Sep 12, 2010 5:58 pm; edited 2 times in total
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tlanglet



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

PostPosted: Sun Sep 12, 2010 3:29 pm    Post subject: Reply with quote

Still playing with AURs...........

AUR(49)r45c47 External SIS: r3c4=4 and/or r6c5=9
AUR(49)r45c47[(9)r6c5=(4)r3c4]-(4=9)r3c1-(9=24)r45c1-(4=3)r6c2-r3c2=r2c3-(3=4)r2c5; this is a contradiction with r3c4=4. Thus r3c4<>4 and r6c5=9 to prevent the AUR(49) which completes the puzzle.

Ted
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daj95376



Joined: 23 Aug 2008
Posts: 3854

PostPosted: Sun Sep 12, 2010 11:31 pm    Post subject: Reply with quote

My Solver's Solution: useless basis for rating

Code:
 r79c49  <38> UR Type 1.2223             r7c4<>38

 r2c2    2-String Kite                   <> 3    r6c5        extraneous
 r26\c35 finned  X-Wing                  <> 4    r45c3       extraneous
 r6c1    2-String Kite (grouped)         <> 4    r3c5        extraneous
 c26r3   Skyscraper                      <> 7    r4c3,r5c4
 r6  b1  turbot fish/ER                  <> 9    r3c5        extraneous

   c35   X-Wing                          <> 9    r1c4

 r46c36  <35> UR Type 6.2234             r4c3,r6c6<>3

         BUG+1                           =  4    r6c3
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JC Van Hay



Joined: 13 Jun 2010
Posts: 494
Location: Charleroi, Belgium

PostPosted: Mon Sep 13, 2010 6:04 am    Post subject: Reply with quote

Too many typos, yesterday Shocked Where was I Question .... Here is the final corrected version of my stupidly written previous post.

Almost Remote Pairs : (34)R2C2 + Fin (7)r3c2-[3C2 AND 3B1 4R2] : => r6c5<>34

Thanks Danny for double ckecking Exclamation Regards, JC
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Marty R.



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

PostPosted: Mon Sep 13, 2010 4:54 pm    Post subject: Reply with quote

X-Wing (2)
W-Wing (34)
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