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Vanhegan Fiendish September 13, 2012

 
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arkietech



Joined: 31 Jul 2008
Posts: 1729
Location: Northwest Arkansas USA

PostPosted: Thu Sep 13, 2012 5:59 am    Post subject: Vanhegan Fiendish September 13, 2012 Reply with quote

Code:

 *-----------*
 |..1|.42|...|
 |..7|8..|9..|
 |...|5..|.87|
 |---+---+---|
 |..2|3..|7.5|
 |.7.|...|.4.|
 |3.5|..9|1..|
 |---+---+---|
 |65.|..7|...|
 |..8|..4|2..|
 |...|13.|5..|
 *-----------*
 

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Clement



Joined: 24 Apr 2006
Posts: 685
Location: Dar es Salaam Tanzania

PostPosted: Thu Sep 13, 2012 8:50 am    Post subject: Vanhagen Fiendish September 13, 2012 Reply with quote

Code:

+--------------+-----------+----------------+
| 89  89   1   | 7  4   2  | 36  5    36    |
| 5   4    7   | 8  6   3  | 9   12   12    |
| 2   36   36  | 5  9   1  | 4   8    7     |
+--------------+-----------+----------------+
| 4   1689 2   | 3  18  68 | 7   69   5     |
| 189 7    69  | 26 128 5  | 368 4    -3689  |
| 3   68   5   | 4  7   9  | 1   26   268   |
+--------------+-----------+----------------+
| 6   5    349 | 29 28  7  | 38  139  13489 |
| 179 139  8   | 69 5   4  | 2   3679 369   |
| 79  2    49  | 1  3   68 | 5   679  4689  |
+--------------+-----------+----------------+
Hidden UR 36 in r15c79; r5c9<>3 leading to
BUG+1; r6c9=6 which solve it.
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tlanglet



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

PostPosted: Thu Sep 13, 2012 1:02 pm    Post subject: Reply with quote

The posted code contains a locked candidate on 3 in box9, which also results in additional deletions.

Code after basics:
Code:
*--------------------------------------------------*
 | 8    9    1    | 7    4    2    | 36   5    36   |
 | 5    4    7    | 8    6    3    | 9    12   12   |
 | 2    36   36   | 5    9    1    | 4    8    7    |
 |----------------+----------------+----------------|
 | 4    18   2    | 3    18   6    | 7    9    5    |
 | 19   7    69   | 2    18   5    | 36   4    368  |
 | 3    68   5    | 4    7    9    | 1    26   268  |
 |----------------+----------------+----------------|
 | 6    5    34   | 9    2    7    | 8    13   14   |
 | 17   13   8    | 6    5    4    | 2    37   9    |
 | 79   2    49   | 1    3    8    | 5    67   46   |
 *--------------------------------------------------*

A Type 1 UR(36)r15c79; -36r5c9 completes the puzzle.

Ted
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Clement



Joined: 24 Apr 2006
Posts: 685
Location: Dar es Salaam Tanzania

PostPosted: Thu Sep 13, 2012 4:53 pm    Post subject: Vanhagen Fiendish September 13, 2012 Reply with quote

tlanglet
Thanks for pointing out that. It is a one step solution. The Box Line Reductions usually elude me Exclamation
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Marty R.



Joined: 12 Feb 2006
Posts: 5175
Location: Rochester, NY, USA

PostPosted: Thu Sep 13, 2012 5:35 pm    Post subject: Reply with quote

I also missed the locked 3s, so I also used the UR and BUG+1.
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Marty R.



Joined: 12 Feb 2006
Posts: 5175
Location: Rochester, NY, USA

PostPosted: Thu Sep 13, 2012 5:42 pm    Post subject: Reply with quote

tlanglet wrote:
The posted code contains a locked candidate on 3 in box9, which also results in additional deletions.

Code after basics:
Code:
*--------------------------------------------------*
 | 8    9    1    | 7    4    2    | 36   5    36   |
 | 5    4    7    | 8    6    3    | 9    12   12   |
 | 2    36   36   | 5    9    1    | 4    8    7    |
 |----------------+----------------+----------------|
 | 4    18   2    | 3    18   6    | 7    9    5    |
 | 19   7    69   | 2    18   5    | 36   4    368  |
 | 3    68   5    | 4    7    9    | 1    26   268  |
 |----------------+----------------+----------------|
 | 6    5    34   | 9    2    7    | 8    13   14   |
 | 17   13   8    | 6    5    4    | 2    37   9    |
 | 79   2    49   | 1    3    8    | 5    67   46   |
 *--------------------------------------------------*

A Type 1 UR(36)r15c79; -36r5c9 completes the puzzle.

Ted


I might also point out that an XY-Wing (496), pivoted in r9c3, plus one transport, does the job too.
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