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Puzzle 10/07/07: XY

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Wed Jul 07, 2010 4:31 pm    Post subject: Puzzle 10/07/07: XY Reply with quote
Code:
 +-----------------------+
 | 5 . . | . . . | . . 3 |
 | . . 9 | . 6 . | . . . |
 | . 6 1 | . . . | 9 2 . |
 |-------+-------+-------|
 | . . . | 7 9 . | 5 . . |
 | . 7 . | 5 2 . | . 9 . |
 | . . . | . . 1 | . . . |
 |-------+-------+-------|
 | . . 6 | 9 . . | 1 7 5 |
 | . . 5 | . 7 . | 8 4 . |
 | 7 . . | . . . | 6 . . |
 +-----------------------+

Play this puzzle online at the Daily Sudoku site

Code:
 after basics
 +--------------------------------------------------------------+
 |  5     28    7     |  128   18    9     |  4     6     3     |
 |  28    34    9     |  2348  6     234   |  7     5     1     |
 |  34    6     1     |  34    5     7     |  9     2     8     |
 |--------------------+--------------------+--------------------|
 |  6     28    238   |  7     9     38    |  5     1     4     |
 |  1     7     48    |  5     2     48    |  3     9     6     |
 |  9     5     34    |  6     34    1     |  2     8     7     |
 |--------------------+--------------------+--------------------|
 |  2348  34    6     |  9     38    23    |  1     7     5     |
 |  23    19    5     |  123   7     6     |  8     4     29    |
 |  7     19    28    |  1248  148   5     |  6     3     29    |
 +--------------------------------------------------------------+
 # 40 eliminations remain
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Thu Jul 08, 2010 1:51 pm    Post subject: Reply with quote
My first pass was a three-stepper........

Quote:
(2=8)r2c1-r1c2=r4c2-(8=3)r4c6-(3=2)r7c6; r2c6<>2
xy-wing -138 with vertex (38)r7c5; r1c4,r9c5<>1
BUG+2 results in r4c2<>8

Ted
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Fri Jul 09, 2010 1:19 am    Post subject: Reply with quote
Messy, and probably some unneeded moves.

X-Wing (3)
DP (12-19-29) makes a few eliminations
Multi-coloring (4)
XY-Wing (348), flightless with pincer transport
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