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Puzzle 10/09/29: D

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Wed Sep 29, 2010 4:25 pm    Post subject: Puzzle 10/09/29: D Reply with quote
Code:
 +-----------------------+
 | 5 . 1 | . . 7 | . 9 3 |
 | . 3 . | . . 1 | 8 2 7 |
 | 7 . 2 | . . . | . . . |
 |-------+-------+-------|
 | . . . | . . . | . . 9 |
 | . . . | . 7 . | . 1 . |
 | 1 9 . | . . 4 | . 5 8 |
 |-------+-------+-------|
 | . 2 . | . . . | . 3 . |
 | 3 1 . | . 9 2 | 6 . . |
 | 9 4 . | 3 . 5 | . . . |
 +-----------------------+

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JC Van Hay



Joined: 13 Jun 2010
Posts: 494
Location: Charleroi, Belgium
PostPosted: Wed Sep 29, 2010 6:54 pm    Post subject: Reply with quote
I cannot resist the following line of reasoning (like Alfred's on sudoku.com.au) ...
Quote:
UP31; SSTS -> UP48; r6c4=6 -> r1c4=2 -> r1c5=8 -> r9c5=6 => no 6 in R2 and B2 : => r6c4=2
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peterj



Joined: 26 Mar 2010
Posts: 974
Location: London, UK
PostPosted: Wed Sep 29, 2010 10:03 pm    Post subject: Reply with quote
A wing using a pseudocell in a column...
Quote:
w-wing(68) with pseudocell ; (8=2)r1c4-(2=6)r6c4 - r4c6=r7c6 - (6=8)r9c5 ; r1c5<>8
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Fri Oct 01, 2010 12:51 am    Post subject: Reply with quote
Potential DP 45-47-57 in boxes 789. Killers are 8 or 1; r2c45=65 is forced.
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