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May 17 VH

 
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Earl



Joined: 30 May 2007
Posts: 677
Location: Victoria, KS

PostPosted: Sun May 17, 2009 1:50 am    Post subject: May 17 VH Reply with quote

A legitimate one-stepper.

Solution: skyscraper in <2>, C68

Early Earl
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Marty R.



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

PostPosted: Sun May 17, 2009 3:46 am    Post subject: Reply with quote

A full menu of one-steppers. Take your choice, Remote Pairs, simple or multi-coloring, W-Wing, XY-Wing or BUG+2. Probably more, but I stopped looking.
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crunched



Joined: 05 Feb 2008
Posts: 168

PostPosted: Sun May 17, 2009 5:29 am    Post subject: Reply with quote

Here is the grid after basics. there is an x-wing on 1s, which served to eliminate a 1, but otherwise did not advance to a solution. It was an xy wing that solved it for me. I am guessing that coloring is a solution, but I don't know because I have no crayons.

Code:

+----------+-----------+---------+
| 3  1   2 | 4   7  5  | 9  8  6 |
| 6  9   4 | 18  3  28 | 7  12 5 |
| 57 57  8 | 6   12 9  | 12 3  4 |
+----------+-----------+---------+
| 8  23  6 | 13  4  7  | 5  12 9 |
| 15 25  7 | 9   12 6  | 3  4  8 |
| 14 234 9 | 138 5  28 | 12 6  7 |
+----------+-----------+---------+
| 9  6   1 | 5   8  3  | 4  7  2 |
| 2  8   3 | 7   9  4  | 6  5  1 |
| 47 47  5 | 2   6  1  | 8  9  3 |
+----------+-----------+---------+

Play this puzzle online at the Daily Sudoku site
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George Woods



Joined: 28 Mar 2006
Posts: 304
Location: Dorset UK

PostPosted: Sun May 17, 2009 10:41 am    Post subject: The W wing Reply with quote

crunched wrote:
Here is the grid after basics. there is an x-wing on 1s, which served to eliminate a 1, but otherwise did not advance to a solution. It was an xy wing that solved it for me. I am guessing that coloring is a solution, but I don't know because I have no crayons.

Code:

+----------+-----------+---------+
| 3  1   2 | 4   7  5  | 9  8  6 |
| 6  9   4 | 18  3  28 | 7  12 5 |
| 57 57  8 | 6   12 9  | 12 3  4 |
+----------+-----------+---------+
| 8  23  6 | 13  4  7  | 5  12 9 |
| 15 25  7 | 9   12 6  | 3  4  8 |
| 14 234 9 | 138 5  28 | 12 6  7 |
+----------+-----------+---------+
| 9  6   1 | 5   8  3  | 4  7  2 |
| 2  8   3 | 7   9  4  | 6  5  1 |
| 47 47  5 | 2   6  1  | 8  9  3 |
+----------+-----------+---------+

Play this puzzle online at the Daily Sudoku site


There is a W-wing using 12 in your grid that kills the 2 in r6c6
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sdq_pete



Joined: 30 Apr 2007
Posts: 119
Location: Rotterdam, NL

PostPosted: Sun May 17, 2009 1:22 pm    Post subject: Reply with quote

There's a simple XY on 123 - see R4C4.
Peter
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Marty R.



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

PostPosted: Sun May 17, 2009 3:29 pm    Post subject: Reply with quote

Quote:
I am guessing that coloring is a solution, but I don't know because I have no crayons.


A special early Christmas gift for Crunched.

[/quote]
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crunched



Joined: 05 Feb 2008
Posts: 168

PostPosted: Sun May 17, 2009 3:47 pm    Post subject: Reply with quote

LOL Thanks for the gift. It is perfect. A box of 64 would cause me waves of paralyzing fear, clueless from the seemingly endless choices. A box of eight is soooooo perfect.

Marty R. wrote:
Quote:
I am guessing that coloring is a solution, but I don't know because I have no crayons.


A special early Christmas gift for Crunched.

[/quote]
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keith



Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA

PostPosted: Sun May 17, 2009 5:58 pm    Post subject: Reply with quote

Code:
+----------+-----------+---------+
| 3  1   2 | 4   7  5  | 9  8  6 |
| 6  9   4 | 18  3  28 | 7  12 5 |
| 57 57  8 | 6   12 9  | 12 3  4 |
+----------+-----------+---------+
| 8  23  6 | 13  4  7  | 5  12 9 |
| 15 25  7 | 9   12 6  | 3  4  8 |
| 14 234 9 | 138 5  28 | 12 6  7 |
+----------+-----------+---------+
| 9  6   1 | 5   8  3  | 4  7  2 |
| 2  8   3 | 7   9  4  | 6  5  1 |
| 47 47  5 | 2   6  1  | 8  9  3 |
+----------+-----------+---------+

BUG+2: R6C2 is <2>, and / or R6C4 is <1>. forming a pseudo-cell <12> that makes a pair with R6C7, eliminating <2> in R6C6 and <1> in R6C1.

Keith
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tlanglet



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

PostPosted: Mon May 18, 2009 12:39 pm    Post subject: Reply with quote

keith wrote:
Code:
+----------+-----------+---------+
| 3  1   2 | 4   7  5  | 9  8  6 |
| 6  9   4 | 18  3  28 | 7  12 5 |
| 57 57  8 | 6   12 9  | 12 3  4 |
+----------+-----------+---------+
| 8  23  6 | 13  4  7  | 5  12 9 |
| 15 25  7 | 9   12 6  | 3  4  8 |
| 14 234 9 | 138 5  28 | 12 6  7 |
+----------+-----------+---------+
| 9  6   1 | 5   8  3  | 4  7  2 |
| 2  8   3 | 7   9  4  | 6  5  1 |
| 47 47  5 | 2   6  1  | 8  9  3 |
+----------+-----------+---------+

BUG+2: R6C2 is <2>, and / or R6C4 is <1>. forming a pseudo-cell <12> that makes a pair with R6C7, eliminating <2> in R6C6 and <1> in R6C1.

Keith


Hot move Keith. Color it RED.

Ted
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keith



Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA

PostPosted: Mon May 18, 2009 9:03 pm    Post subject: Reply with quote

Quote:
Hot move Keith. Color it RED.
Embarassed

There was a BUG+2 in yesterday's BB. I'll find it and post it.

Keith
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