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Puzzle 10/09/26: C

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Sun Sep 26, 2010 1:42 am    Post subject: Puzzle 10/09/26: C Reply with quote
Code:
 +-----------------------+
 | . . . | 8 . . | . . 2 |
 | . 4 . | 9 2 . | . . . |
 | . . 3 | 4 . 7 | . . . |
 |-------+-------+-------|
 | 9 3 2 | . 1 8 | 5 . 7 |
 | . 8 . | 2 3 4 | . 6 . |
 | . . 4 | 7 9 . | . . . |
 |-------+-------+-------|
 | . . . | 3 . . | 7 . . |
 | . . . | . 4 . | . 8 9 |
 | 3 . . | 5 . . | . 2 . |
 +-----------------------+

Play this puzzle online at the Daily Sudoku site
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peterj



Joined: 26 Mar 2010
Posts: 974
Location: London, UK
PostPosted: Sun Sep 26, 2010 8:42 am    Post subject: Reply with quote
Danny's e-turbot move has got me looking at "interesting" transports on turbot moves .. here's one!
Quote:
skyscraper(6) ; (6)r8c3=r2c3 - r2c7=r9c7 ; r9c2<>6
... with transport ; (6-1)r9c7=r9c2 - (1=6)r6c2 ; r7c2<>6
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Sun Sep 26, 2010 3:11 pm    Post subject: Reply with quote
peterj wrote:
Danny's e-turbot move has got me looking at "interesting" transports on turbot moves .. here's one!

Congratulations on an interesting find !!!
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JC Van Hay



Joined: 13 Jun 2010
Posts: 494
Location: Charleroi, Belgium
PostPosted: Sun Sep 26, 2010 4:13 pm    Post subject: Reply with quote
Quote:
XY Wing Style, pivot at 1R7 : (9)r1c3=(9)r3c8 : => r3c2<>9
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peterj



Joined: 26 Mar 2010
Posts: 974
Location: London, UK
PostPosted: Sun Sep 26, 2010 4:25 pm    Post subject: Reply with quote
JC, I had a 1 in r7c2 after basics? So I can't see your w-wing?

(Though I can see an almost w-wing since (1)r7c2-(16=9)r69c2)
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JC Van Hay



Joined: 13 Jun 2010
Posts: 494
Location: Charleroi, Belgium
PostPosted: Sun Sep 26, 2010 4:44 pm    Post subject: Reply with quote
Peter, you are right. I didn't correctly checked if I could get rid of the Skyscraper (6)C37 and the ensuing NP(19)B7. Thanks for checking. BTW, I like very much your e-turbot. Very Happy - Regards, JC.

PS : your almost W Wing is also a Kraken Row 1R7 Idea
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Sun Sep 26, 2010 10:27 pm    Post subject: Reply with quote
Quote:
Flightless W-wing (19)r3c8 & r7c3 GSL (9)r379: w-wing[(1)r7c3=(1)r3c8]-r7c8=(1)r9c7; r9c2<>1

Ted
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Mon Sep 27, 2010 12:58 am    Post subject: Reply with quote
Several hits around it, but no score.

Code:
 +--------------------------------------------------------------+
 |  1567  57    19    |  8     56    3     |  4     1579  2     |
 |  5678  4     567   |  9     2     1     |  68    57    3     |
 |  128   129   3     |  4     56    7     |  18    19    56    |
 |--------------------+--------------------+--------------------|
 |  9     3     2     |  6     1     8     |  5     4     7     |
 |  57    8     57    |  2     3     4     |  9     6     1     |
 |  16    16    4     |  7     9     5     |  2     3     8     |
 |--------------------+--------------------+--------------------|
 |  4     1269  19    |  3     8     269   |  7     15    56    |
 |  2567  57    567   |  1     4     26    |  3     8     9     |
 |  3     169   8     |  5     7     69    |  16    2     4     |
 +--------------------------------------------------------------+
 # 47 eliminations remain

JC might call it a Kraken box: (19)r3c8 9b1 (91)r7c3

Others might call it:

W-Wing: (1=9)r3c8 - r3c2 = r1c3 - (9=1)r7c3 => r7c8<>1

----- ----- ----- ----- -----

JC question: Since your notation seems to only list strong inferences, isn't it redundant to use uppercase as well?

As a discontinuous loop: =1r7c8 (19)r3c8 9b1 (91)r7c3 -1r7c8

Regards, Danny
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Mon Sep 27, 2010 4:33 am    Post subject: Reply with quote
Skyscraper (6)
W-Wing (19)
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peterj



Joined: 26 Mar 2010
Posts: 974
Location: London, UK
PostPosted: Mon Sep 27, 2010 5:15 am    Post subject: Reply with quote
daj95376 wrote:
Several hits around it, but no score.

That's the second "simple" w-wing I have missed in the last few puzzles! Both had the strong link within a single box - seems I have tuned that out!
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