dailysudoku.com Forum Index dailysudoku.com
Discussion of Daily Sudoku puzzles
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

NAM Puzzles

 
Post new topic   Reply to topic    dailysudoku.com Forum Index -> Other puzzles
View previous topic :: View next topic  
Author Message
keith



Joined: 19 Sep 2005
Posts: 3179
Location: near Detroit, Michigan, USA

PostPosted: Mon Feb 24, 2014 5:04 am    Post subject: NAM Puzzles Reply with quote

Does any one care for this type of puzzle? No advanced moves required. I like to do them using pencil and paper with no pencil marks.
Code:
Puzzle: Puzzle 157
+-------+-------+-------+
| . 8 . | . . . | 4 1 . |
| 2 . . | . 4 . | 7 . . |
| 6 3 . | . . 9 | . . . |
+-------+-------+-------+
| . . . | 8 . . | 9 . . |
| . 2 . | 4 . 3 | . 8 . |
| . . 1 | . . 6 | . . . |
+-------+-------+-------+
| . . . | 9 . . | . 7 1 |
| . . 6 | . 5 . | . . 2 |
| . 7 2 | . . . | . 9 . |
+-------+-------+-------+

Keith
Back to top
View user's profile Send private message
Marty R.



Joined: 12 Feb 2006
Posts: 5166
Location: Rochester, NY, USA

PostPosted: Mon Feb 24, 2014 5:38 pm    Post subject: Reply with quote

I don't care for them, perhaps because I'm so bad at them.
Back to top
View user's profile Send private message
keith



Joined: 19 Sep 2005
Posts: 3179
Location: near Detroit, Michigan, USA

PostPosted: Wed Feb 26, 2014 7:28 am    Post subject: Reply with quote

I guess no one except me (and perhaps Pat) finds these interesting, so I wont bother to post them.

Keith
Back to top
View user's profile Send private message
ronk



Joined: 07 May 2006
Posts: 397

PostPosted: Wed Feb 26, 2014 3:44 pm    Post subject: Reply with quote

keith wrote:
I guess no one except me (and perhaps Pat) finds these interesting, so I wont bother to post them.

keith, even though I'm really not a puzzle solver, I've started this in Simple Sudoku, without pencilmarks of course. I'm stumped after 10 placements. Do you (or anyone else) know of a solver program that gives hints based on a "no pencilmark grid?"
Back to top
View user's profile Send private message
keith



Joined: 19 Sep 2005
Posts: 3179
Location: near Detroit, Michigan, USA

PostPosted: Thu Feb 27, 2014 5:52 am    Post subject: Reply with quote

ronk wrote:
keith wrote:
I guess no one except me (and perhaps Pat) finds these interesting, so I wont bother to post them.

keith, even though I'm really not a puzzle solver, I've started this in Simple Sudoku, without pencilmarks of course. I'm stumped after 10 placements. Do you (or anyone else) know of a solver program that gives hints based on a "no pencilmark grid?"

ronk,

Yes. Sudoku Susser allows you to turn off pencil marks and show next cells to be solved only by highlighting them, as you choose the progression of NAM solution techniques. Sudoku Susser is not very good at advanced techniques, but is a wonderful tool for puzzles that need only the "basics".

Keith
Back to top
View user's profile Send private message
keith



Joined: 19 Sep 2005
Posts: 3179
Location: near Detroit, Michigan, USA

PostPosted: Thu Feb 27, 2014 6:06 am    Post subject: Reply with quote

ronk,

Look for hidden pairs in R3 and C9.

To be quite honest, I find solving puzzles like this by inspection much more satisfying than using a solver to blast through the basics and then find an arcane chain.

But, other's preferences may vary.

Keith
Back to top
View user's profile Send private message
ronk



Joined: 07 May 2006
Posts: 397

PostPosted: Thu Mar 06, 2014 11:04 pm    Post subject: Reply with quote

keith wrote:
Look for hidden pairs in R3 and C9..

Thanks, finally figured out this leads to completion of the 8s template. Now onward to the next "break through", for me anyway. Smile

[edit: Reposted with the following addition]

keith, would you please be so kind as to post your next hint(s)?

Code:
 *-----------*
 |.8.|...|41.|
 |21.|.48|76.|
 |634|..9|..8|
 |---+---+---|
 |.63|8..|9..|
 |.2.|4.3|186|
 |8.1|..6|...|
 |---+---+---|
 |.58|9..|.71|
 |..6|.5.|8.2|
 |.72|.8.|.9.|
 *-----------*
Back to top
View user's profile Send private message
keith



Joined: 19 Sep 2005
Posts: 3179
Location: near Detroit, Michigan, USA

PostPosted: Thu Mar 13, 2014 6:54 am    Post subject: Reply with quote

Ron,

You posted:

Code:
+-------------------+-------------------+-------------------+
| 579   8     579   | 23567 2367  257   | 4     1     359   |
| 2     1     59    | 35    4     8     | 7     6     359   |
| 6     3     4     | 1257  127   9     | 25    25    8     |
+-------------------+-------------------+-------------------+
| 457   6     3     | 8     127   1257  | 9     245   457   |
| 579   2     579   | 4     79    3     | 1     8     6     |
| 8     49    1     | 257   279   6     | 235   2345  3457  |
+-------------------+-------------------+-------------------+
| 34    5     8     | 9     236   24    | 36    7     1     |
| 1349  49    6     | 137   5     147   | 8     34    2     |
| 134   7     2     | 136   8     14    | 356   9     345   |
+-------------------+-------------------+-------------------+

A pair 25 in R3. A pair 17 in R3/B2

A hidden pair 36 in C5.

I apologize, but I have been distracted and not on the site for a number of days.

Keith
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    dailysudoku.com Forum Index -> Other puzzles All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group