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Puzzle 10/09/21: A

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Tue Sep 21, 2010 4:55 am    Post subject: Puzzle 10/09/21: A Reply with quote
Code:
 +-----------------------+
 | 1 . . | . 5 . | . . 6 |
 | . . 3 | 2 8 6 | 1 . . |
 | . 5 2 | . . . | . . . |
 |-------+-------+-------|
 | . 1 . | . 7 . | . . . |
 | 5 7 . | 3 . . | . 6 4 |
 | . 6 . | . . 2 | . . . |
 |-------+-------+-------|
 | . 2 . | . . . | 5 . 3 |
 | . . . | . 3 . | . 8 . |
 | 8 . . | . 2 . | 6 . 7 |
 +-----------------------+

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JC Van Hay



Joined: 13 Jun 2010
Posts: 494
Location: Charleroi, Belgium
PostPosted: Tue Sep 21, 2010 8:04 am    Post subject: Reply with quote
Quote:
S Wing : 4R6 (49)R4C3 9B6 : (4)r6c5=(9)r6c8 : => r6c5<>9
XY Wing (-159), pivot at R4C6 : => r5c6<>1
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peterj



Joined: 26 Mar 2010
Posts: 974
Location: London, UK
PostPosted: Tue Sep 21, 2010 8:43 am    Post subject: Reply with quote
Two steps...
Quote:
sashimi x-wing(9) ; r4c6<>9
xy-wing(49-5) r6c5 ; r4c8<>5, r6c4<>5
Following the discussions on s-wings, there's an interesting one pivoting on a pseudocell in band 2
Quote:
s-wing(45) (4)r4c3=r6c3 - (4=9)r6c5-(9=5)r6c8 - (5)r6c4=r4c6 ; r4c6<>4
Still needs a 9 move...
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Tue Sep 21, 2010 6:26 pm    Post subject: Reply with quote
Aaaagh! I just realized that a pseudo-cell is (/can be) an ALS. Aaaagh!

Code:
(4=9=5)r6c58
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Tue Sep 21, 2010 10:00 pm    Post subject: Reply with quote
Type 1 UR (49)
DP (38-39-89) r34c789, DP killer 4 or 5--->r5c3=8
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