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Puzzle 10/01/18 (B)

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Mon Jan 18, 2010 5:07 pm    Post subject: Puzzle 10/01/18 (B) Reply with quote
single-stepper

Code:
 +-----------------------+
 | 2 9 . | . . 8 | 7 . . |
 | 3 7 . | . . . | 4 . . |
 | . . 4 | . . 3 | . . . |
 |-------+-------+-------|
 | . . . | 1 . . | . . 5 |
 | . . . | . 3 . | 9 . . |
 | 6 . 2 | . . . | 8 3 . |
 |-------+-------+-------|
 | 1 6 . | . 8 9 | . . . |
 | . . . | . . 1 | . 5 . |
 | . . . | 3 . . | . . 9 |
 +-----------------------+

Play this puzzle online at the Daily Sudoku site
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arkietech



Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
PostPosted: Mon Jan 18, 2010 9:27 pm    Post subject: Reply with quote
One step -- my kind of puzzle: Very Happy
Quote:
(3=7)r7c3-(7=8)r9c3-(8=6)r9c8-(6=3)r8c7
=> r7c7,r8c2<>3
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Wed Jan 20, 2010 12:40 am    Post subject: Reply with quote
My first and only move was
Quote:
a xy-wing -378 with vertex 78 in r9c3, pincer 37 in r7c3, pincer 38 a pseudocell in box9; r7c7|r8c2<>3.


For Dan, the same pattern was a xy-chain.

Ted
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Wed Jan 20, 2010 5:54 am    Post subject: Reply with quote
Two steps here. The implications of a 24 UR set r4c7=6, after which a Type 1 UR on another 24 finished it off.
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