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Puzzle 10/10/14: A Advanced

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Thu Oct 14, 2010 1:56 am    Post subject: Puzzle 10/10/14: A Advanced Reply with quote
Code:
 +-----------------------+
 | . 2 . | 8 . 1 | . 9 . |
 | 5 4 . | . . . | . . . |
 | . . 7 | 4 6 . | . . . |
 |-------+-------+-------|
 | 9 . 6 | 1 5 . | 4 2 . |
 | . . 2 | 9 . . | . 1 6 |
 | 3 . . | . . 6 | . . . |
 |-------+-------+-------|
 | . . . | 6 . . | . 4 . |
 | 4 . . | 5 9 . | 2 7 . |
 | . . . | . 4 . | . . 5 |
 +-----------------------+

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storm_norm



Joined: 18 Oct 2007
Posts: 1741
PostPosted: Thu Oct 14, 2010 6:17 am    Post subject: Reply with quote
I just couldn't stop staring at those 8's in row 8



kraken row 8 on 8's
proves that the 8 in r2c3 can be eliminated.

Code:
(8)r8c3
||
(8-3)r8c6 = (3-1)r8c9 = (1-6)r9c7 = (6)r2c7 - (6=8)r2c8
||       /
(8)r8c9-/
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Fri Oct 15, 2010 1:24 am    Post subject: Reply with quote
XY-Wing (387)
DP (89), boxes 69, solution to box 5 is forced
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