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Puzzle 10/07/11: XY

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Sun Jul 11, 2010 8:02 am    Post subject: Puzzle 10/07/11: XY Reply with quote
Code:
 +-----------------------+
 | 7 . . | . . . | . . 6 |
 | . 6 2 | . . . | . . . |
 | . 3 9 | 6 . 1 | 4 2 5 |
 |-------+-------+-------|
 | . . 3 | . 6 . | 7 . . |
 | . . . | 4 1 . | . 6 . |
 | . . 6 | . . 2 | . 4 . |
 |-------+-------+-------|
 | . . 7 | 1 . . | 2 3 . |
 | . . 4 | . 3 6 | 5 1 . |
 | 3 . 8 | . . . | . . 4 |
 +-----------------------+

Play this puzzle online at the Daily Sudoku site

Code:
 after basics
 +--------------------------------------------------------------+
 |  7     4     1     |  25    289   3589  |  39    89    6     |
 |  5     6     2     |  389   489   3489  |  1     789   379   |
 |  8     3     9     |  6     7     1     |  4     2     5     |
 |--------------------+--------------------+--------------------|
 |  4     2     3     |  89    6     89    |  7     5     1     |
 |  9     78    5     |  4     1     37    |  38    6     2     |
 |  1     78    6     |  37    5     2     |  389   4     39    |
 |--------------------+--------------------+--------------------|
 |  6     5     7     |  1     489   489   |  2     3     89    |
 |  2     9     4     |  78    3     6     |  5     1     78    |
 |  3     1     8     |  25    29    579   |  6     79    4     |
 +--------------------------------------------------------------+
 # 41 eliminations remain
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Sun Jul 11, 2010 6:48 pm    Post subject: Reply with quote
My first step was the only one needed..........

Quote:
xy-wing 3-79 with vertex (39)r6c9 and pseudocell (79)r78c9; r8c4<>7

Ted
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Mon Jul 12, 2010 4:58 pm    Post subject: Reply with quote
Five-cell XY-Chain, r7c9<>9.
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