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Pattern game 8.30 gsf 5.7

 
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arkietech



Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA

PostPosted: Fri May 25, 2012 5:58 am    Post subject: Pattern game 8.30 gsf 5.7 Reply with quote

Code:

 *-----------*
 |...|...|...|
 |..6|3.2|4..|
 |.5.|.1.|.7.|
 |---+---+---|
 |.9.|...|.3.|
 |..2|.5.|7..|
 |.1.|...|.4.|
 |---+---+---|
 |.3.|.7.|.1.|
 |..7|6.4|2..|
 |...|...|...|
 *-----------*
 

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SudoQ



Joined: 02 Aug 2011
Posts: 127

PostPosted: Fri May 25, 2012 9:30 am    Post subject: Reply with quote

The bi-cell r4c1/4=7 excludes 7 from r1c4 or 5 from r9c4 via r1c9=5.

/SudoQ
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arkietech



Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA

PostPosted: Fri May 25, 2012 10:11 am    Post subject: Reply with quote

Code:

 *--------------------------------------------------*
 | 38   4    1    |c57   6    57   | 9    2    38   |
 | 89   7    6    | 3    89   2    | 4    5    1    |
 | 2    5    389  | 4    1    89   | 6    7    38   |
 |----------------+----------------+----------------|
 |e578  9    58   |d78   4    6    | 1    3    2    |
 | 4    6    2    | 1    5    3    | 7    8    9    |
 | 378  1    38   | 789  2    789  | 5    4    6    |
 |----------------+----------------+----------------|
 | 6    3    59   | 2    7    59   | 8    1    4    |
 | 1    8    7    | 6    3    4    | 2    9    5    |
 |a59   2    4    |b589  89   1    | 3    6    7    |
 *--------------------------------------------------*
 d-loop
 (5)r9c1=r9c4-(5=7)r1c4-r4c4=(7-5)r4c1=(5)r9c1 => r9c1=5; stte

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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills

PostPosted: Fri May 25, 2012 1:20 pm    Post subject: Reply with quote

xy-wing(78-5) with pincer transport: (5=8)r4c3-(8=7)r4c4-(7=5)r1c4-r1c6=r7c6; r7c3<>5

[Edit: It was kindly pointed out to me that I also had a typo in my post; RED markes the corrections]

Ted


Last edited by tlanglet on Fri May 25, 2012 10:45 pm; edited 1 time in total
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills

PostPosted: Fri May 25, 2012 1:29 pm    Post subject: Reply with quote

SudoQ wrote:
The bi-cell r4c1/4=7 excludes 7 from r1c4 or 5 from r9c4 via r1c9=5.

/SudoQ

/SudoQ, I am unable to interpret your solution. A typo adds to my difficulty since the posted code solution does not have a 5 in r1c9.

Please offer more detail.

Ted
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SudoQ



Joined: 02 Aug 2011
Posts: 127

PostPosted: Fri May 25, 2012 3:03 pm    Post subject: Reply with quote

Hi Ted!

I mixed up the row and column. It should be: r9c1 = 5 ... Embarassed

I posted this because the same starting point gave two different single-step solutions:
Code:
r4c1=7 -> r9c1=5 ->
r4c4=7 -> r1c4=5 => r9c4<>5

and

r4c1=7 -> r9c1=5 -> r1c4=5
r4c4=7 ->        => r1c4<>7

/SudoQ
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Clement



Joined: 24 Apr 2006
Posts: 1111
Location: Dar es Salaam Tanzania

PostPosted: Fri May 25, 2012 3:11 pm    Post subject: Pattern game 8.30 gsf 5.7 Reply with quote

X-Wing on 9 col 15; r9c4<>9 which opens a W-Wing 58 with SL 5 in col 1; r4c4<>8 and solves it.
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aran



Joined: 19 Apr 2010
Posts: 70

PostPosted: Fri May 25, 2012 3:18 pm    Post subject: Reply with quote

dailysudoku 25.5.12
Code:

 *-----------*
 |...|...|...|
 |..6|3.2|4..|
 |.5.|.1.|.7.|
 |---+---+---|
 |.9.|...|.3.|
 |..2|.5.|7..|
 |.1.|...|.4.|
 |---+---+---|
 |.3.|.7.|.1.|
 |..7|6.4|2..|
 |...|...|...|
 *-----------*

ssts
Code:

 *--------------------------------------------------*
 | 38   4    1    | 57   6    57   | 9    2    38   |
 | 89   7    6    | 3    89   2    | 4    5    1    |
 | 2    5    389  | 4    1    89   | 6    7    38   |
 |----------------+----------------+----------------|
 | 578  9    58   | 78   4    6    | 1    3    2    |
 | 4    6    2    | 1    5    3    | 7    8    9    |
 | 37   1    38   | 9    2    78   | 5    4    6    |
 |----------------+----------------+----------------|
 | 6    3    59   | 2    7    59   | 8    1    4    |
 | 1    8    7    | 6    3    4    | 2    9    5    |
 | 59   2    4    | 58   89   1    | 3    6    7    |
 *--------------------------------------------------*

8r3c3=BUG=8r4c1 : <8>r4c3
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA

PostPosted: Fri May 25, 2012 5:02 pm    Post subject: Reply with quote

tlanglet wrote:
xy-wing(78-5) with pincer transport: (5=8)r6c3-(8=7)r6c4-(7=5)r1c4-r1c6=r7c6; r7c3<>5

Ted


Same.
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