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Puzzle 10/06/12: (C) XY (corrected)

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Sat Jun 12, 2010 8:47 pm    Post subject: Puzzle 10/06/12: (C) XY (corrected) Reply with quote
Code:
 +-----------------------+
 | 3 . 7 | . . 6 | 9 8 4 |
 | . 2 . | . . . | . . . |
 | 8 . 9 | . . . | . . . |
 |-------+-------+-------|
 | . . . | . . 8 | 7 . . |
 | . . . | . 7 5 | . 4 . |
 | 7 . . | 6 2 3 | 5 . . |
 |-------+-------+-------|
 | 2 . . | 8 . 7 | . 5 . |
 | 5 . . | . 6 . | 8 3 . |
 | 4 . . | . . . | . . 7 |
 +-----------------------+

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Code:
 after basics
 +-----------------------------------------------------------------------+
 |  3      15     7      |  2      15     6      |  9      8      4      |
 |  16     2      4      |  357    8      9      |  136    167    1356   |
 |  8      156    9      |  357    1345   14     |  1236   1267   12356  |
 |-----------------------+-----------------------+-----------------------|
 |  169    136    5      |  149    49     8      |  7      26     236    |
 |  169    136    2      |  19     7      5      |  36     4      8      |
 |  7      4      8      |  6      2      3      |  5      19     19     |
 |-----------------------+-----------------------+-----------------------|
 |  2      9      36     |  8      13     7      |  4      5      16     |
 |  5      7      1      |  49     6      24     |  8      3      29     |
 |  4      8      36     |  35     1359   12     |  126    1269   7      |
 +-----------------------------------------------------------------------+
 # 65 eliminations remain
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Sun Jun 13, 2010 2:41 am    Post subject: Reply with quote
Two steps........

Quote:
xy-wing 13-5 with vertex 13 in r7c5; r23c4,r9c5<>5
ANP(13=9)r79c5 - r8c4 = r8c9 - (9=1)r6c9 - (6=1)r7c9 = (1)r7c5; r13c5<>1

Ted
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peterj



Joined: 26 Mar 2010
Posts: 974
Location: London, UK
PostPosted: Sun Jun 13, 2010 10:07 am    Post subject: Reply with quote
A one-stepper straight xy...
Quote:
xy-chain (1=4)r3c6 - (4=2)r8c6 - (2=9)r8c9 - (9=1)r6c9 - (1=6)r7c9 - (6=3)r7c3 - (3=1)r7c5; r13c5<>1, r9c6<>1
singles
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