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Set T_02 Puzzle 29

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854

PostPosted: Thu Mar 19, 2009 3:16 pm    Post subject: Set T_02 Puzzle 29 Reply with quote

VH

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

Play this puzzle online at the Daily Sudoku site
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gindaani



Joined: 06 Mar 2009
Posts: 79

PostPosted: Thu Mar 19, 2009 7:41 pm    Post subject: Reply with quote

Two consecutive xy-wings solved it.

I had this after the basics:

Code:

+--------------+------------+-----------+
| 6   578 1    | 38  89 389 | 4  2  579 |
| 29  4   29   | 7   6  5   | 8  3  1   |
| 58  578 3    | 4   1  2   | 59 79 6   |
+--------------+------------+-----------+
| 3   59  6    | 1   2  4   | 7  8  59  |
| 4   1   7    | 58  3  89  | 59 6  2   |
| 589 2   589  | 6   59 7   | 1  4  3   |
+--------------+------------+-----------+
| 7   3   58   | 9   58 6   | 2  1  4   |
| 1   89  2489 | 238 47 38  | 6  5  79  |
| 259 6   2459 | 25  47 1   | 3  79 8   |
+--------------+------------+-----------+


Solution:
Quote:

two 589 xy-wings at r8c2 then r6c5
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills

PostPosted: Fri Mar 20, 2009 2:17 pm    Post subject: Reply with quote

One step:
Quote:
The xy-wing589 reported by Gindaani with both pincers transported to delete <5> from r5c4

Ted
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