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Puzzle 10/09/16: C

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Thu Sep 16, 2010 5:16 pm    Post subject: Puzzle 10/09/16: C Reply with quote
Code:
 +-----------------------+
 | 9 . . | . . . | . . 5 |
 | . 6 . | 7 . 1 | . . . |
 | . . 1 | . . . | . 9 . |
 |-------+-------+-------|
 | . 1 . | 5 . . | . 4 9 |
 | . . . | . 7 8 | . . 1 |
 | . 9 . | . 1 3 | 8 . . |
 |-------+-------+-------|
 | . . . | . . 7 | . 1 . |
 | . . 7 | 1 . . | 3 5 8 |
 | 1 . . | 6 3 . | . 7 2 |
 +-----------------------+

Play this puzzle online at the Daily Sudoku site
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Fri Sep 17, 2010 3:02 am    Post subject: Reply with quote
Quote:
6-cell ADP(38)r134c134 internal SIS: r1c3=2, r1c4=2, r3c4=2, r3c1=4; r5c1<>4
(2)r1c3-(2=4)r1c6-r9c6=r8c5-r8c2=(4)r5c2
||
(2)r1c4-(2=4)r1c6-r9c6=r8c5-r8c2=(4)r5c2
||
r3c4=2-(2=4)r1c6-r9c6=r8c5-r8c2=(4)r5c2
||
r3c1=4

Ted
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JC Van Hay



Joined: 13 Jun 2010
Posts: 494
Location: Charleroi, Belgium
PostPosted: Fri Sep 17, 2010 10:39 am    Post subject: Reply with quote
Quote:
W Wing (24) : (42)R8C5 2R4 (24)R1C6 : => r1c5,r9c6<>4

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ronk



Joined: 07 May 2006
Posts: 398
PostPosted: Fri Sep 17, 2010 11:23 am    Post subject: Reply with quote
tlanglet wrote:
6-cell ADP(38)r134c134 internal SIS: r1c3=2, r1c4=2, r3c4=2, r3c1=4; r5c1<>4

Nice observation. Unfortunately, the BUG-Lite+4 isn't really required. Using three of the same strong inferences ...

(4=2)als:r3c124 - (2=4)r1c6 - (4)r9c6 = (4)r8c5 - (4)r8c2 = (4)r5c2 ==> r5c1<>4
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Fri Sep 17, 2010 12:37 pm    Post subject: Reply with quote
ronk wrote:
tlanglet wrote:
6-cell ADP(38)r134c134 internal SIS: r1c3=2, r1c4=2, r3c4=2, r3c1=4; r5c1<>4

Nice observation. Unfortunately, the BUG-Lite+4 isn't really required. Using three of the same strong inferences ...

(4=2)als:r3c124 - (2=4)r1c6 - (4)r9c6 = (4)r8c5 - (4)r8c2 = (4)r5c2 ==> r5c1<>4


Ron,

Thanks for the comment, and in turn, nice observation yourself. For me, it was fortunate that I spotted the ADP since I did not, and probably would not, spot the als.

Ted
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Fri Sep 17, 2010 9:47 pm    Post subject: Reply with quote
W-Wing (38) + pincer transport
BUG+2
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