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Symmetry

 
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Earl



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

PostPosted: Mon Jul 28, 2008 4:10 pm    Post subject: Symmetry Reply with quote

This one comes down to a symmetrical pattern (29) that offers a variety of soluitions.

Earl

PS Sorry I dont know how to improve the format.

56.14.73.
14..8..5.
.........
.....7..3
47....8..
..38..1..
.1..2..4.
....94...
85...3...
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Marty R.



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

PostPosted: Mon Jul 28, 2008 4:49 pm    Post subject: Reply with quote

Earl, you could just type the clues into the Draw/Play. I assumed that's what you do when you publish the DBs.
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nataraj



Joined: 03 Aug 2007
Posts: 1048
Location: near Vienna, Austria

PostPosted: Mon Jul 28, 2008 6:28 pm    Post subject: Reply with quote

This might help:
Code:

+-----------+-----------+-----------+
|  5  6  .  |  1  4  .  |  7  3  .  |
|  1  4  .  |  .  8  .  |  .  5  .  |
|  .  .  .  |  .  .  .  |  .  .  .  |
+-----------+-----------+-----------+
|  .  .  .  |  .  .  7  |  .  .  3  |
|  4  7  .  |  .  .  .  |  8  .  .  |
|  .  .  3  |  8  .  .  |  1  .  .  |
+-----------+-----------+-----------+
|  .  1  .  |  .  2  .  |  .  4  .  |
|  .  .  .  |  .  9  4  |  .  .  .  |
|  8  5  .  |  .  .  3  |  .  .  .  |
+-----------+-----------+-----------+

play online
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keith



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

PostPosted: Mon Jul 28, 2008 9:59 pm    Post subject: Re: Symmetry Reply with quote

Earl wrote:
This one comes down to a symmetrical pattern (29) that offers a variety of soluitions.

Earl

PS Sorry I dont know how to improve the format.

Code:
56.14.73.
14..8..5.
.........
.....7..3
47....8..
..38..1..
.1..2..4.
....94...
85...3...


At the very least, highlight the puzzle text, and click the "code" button once.

Keith
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Marty R.



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

PostPosted: Mon Jul 28, 2008 11:18 pm    Post subject: Reply with quote

This certainly was as advertised, with wall-to-wall 29 cells. I didn't try to determine how large a variety of solutions there were, I just used the most obvious one, which was enough to finish it off.
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ravel



Joined: 21 Apr 2006
Posts: 536

PostPosted: Tue Jul 29, 2008 2:51 pm    Post subject: Reply with quote

A possible alternative to remote pairs, xy-wing or coloring is the 2-cell-BUG, which eliminates 2 from r3c1 and 9 fom r3c2:
Code:
 *------------------------------------------*
 | 5    6    29  | 1   4  29  | 7   3   8   |
 | 1    4    7   | 3   8  6   | 29  5   29  |
 |#239 #239  8   | 29  7  5   | 4   1   6   |
 |---------------+------------+-------------|
 | 29   8    1   | 4   6  7   | 5   29  3   |
 | 4    7    5   | 29  3  1   | 8   6   29  |
 | 6    29   3   | 8   5  29  | 1   7   4   |
 |---------------+------------+-------------|
 | 39   1    69  | 7   2  8   | 36  4   5   |
 | 7    23   26  | 5   9  4   | 36  8   1   |
 | 8    5    4   | 6   1  3   | 29  29  7   |
 *------------------------------------------*

If you remove 9 from r3c1 and 2 from r3c2 (the only numbers, that appear more than 2 times in the 3 units of the cell) you have a BUG (all numbers in the unresolved cells appear exactly 2 times in each unit).
So r3c1=9 or r3c2=2. In both cases r3c1<>2 and r3c2<>9.
[Edit: Hopefully formulated better]
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