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Vanhegan extreme September 24, 2012

 
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arkietech



Joined: 31 Jul 2008
Posts: 1734
Location: Northwest Arkansas USA

PostPosted: Mon Sep 24, 2012 6:09 am    Post subject: Vanhegan extreme September 24, 2012 Reply with quote

Code:

 *-----------*
 |5.7|893|1..|
 |8..|.4.|.7.|
 |...|2.7|.3.|
 |---+---+---|
 |.9.|..8|...|
 |...|.1.|...|
 |...|9..|.2.|
 |---+---+---|
 |.7.|1.5|...|
 |.4.|.2.|..7|
 |..2|476|5.1|
 *-----------*
 


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Marty R.



Joined: 12 Feb 2006
Posts: 5181
Location: Rochester, NY, USA

PostPosted: Mon Sep 24, 2012 5:59 pm    Post subject: Reply with quote

Code:
+--------------+--------------+------------+
| 5    2   7   |  8    9    3 | 1    6 4   |
| 8   A36 E369 | B56   4    1 | 29   7 259 |
| 469  1   469 |  2   C56   7 | 89   3 589 |
+--------------+--------------+------------+
| 2    9  F346 |  567 -35-6 8 | 347  1 36  |
| 467  36  8   |  67   1    2 | 3479 5 369 |
| 67   5   1   |  9   D36   4 | 378  2 368 |
+--------------+--------------+------------+
| 69   7   69  |  1    8    5 | 23   4 23  |
| 1    4   5   |  3    2    9 | 6    8 7   |
| 3    8   2   |  4    7    6 | 5    9 1   |
+--------------+--------------+------------+


Couldn't find the one-stepper.

XY-Chain, A=6-->D=3 via ABCD; transport 3 from A to F via E; r4c5<>3.

Without further diagrams: W-Wing on 36 in boxes 16 with SL 3 in r5. Transport 6 from A to C; r4c5<>6.
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arkietech



Joined: 31 Jul 2008
Posts: 1734
Location: Northwest Arkansas USA

PostPosted: Mon Sep 24, 2012 6:14 pm    Post subject: Reply with quote

Code:
 
 *-----------------------------------------------------------*
 | 5     2     7     | 8     9     3     | 1     6     4     |
 | 8     36    369   | 56    4     1     | 29    7     259   |
 | 469   1     469   | 2     56    7     | 89    3     589   |
 |-------------------+-------------------+-------------------|
 | 2     9     346   | 567   356   8     | 347   1    c36    |
 | 467  a36    8     | 67    1     2     | 479-3 5     69-3  |
 |b67    5     1     | 9     36    4     |c378   2    c368   |
 |-------------------+-------------------+-------------------|
 | 69    7     69    | 1     8     5     | 23    4     23    |
 | 1     4     5     | 3     2     9     | 6     8     7     |
 | 3     8     2     | 4     7     6     | 5     9     1     |
 *-----------------------------------------------------------*
wing
(3=6)r5c2-(6=7)r6c1-(7=nt[683])r46c9,r6c7 => -3r5c79; stte

either r5c2 is a 3 or a naked triple exists in r46c9,r6c7


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tlanglet



Joined: 17 Oct 2007
Posts: 2461
Location: Northern California Foothills

PostPosted: Mon Sep 24, 2012 9:22 pm    Post subject: Reply with quote

I seemed to have found the same solution path as Dan but viewed it as an almost xy-wing.

{xy-wing(67-3)r6c1+r5c2|r6c7} = (8)r6c7-(8=36)r46c9; -3r5c79

Note: To clarify my logic and the associated notation, I present the simple xy-wing in curly brackets, {}, assuming r6c7=37 and then add the almost condition, r6c7=8; the common deletions are listed.

Ted
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