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 

A "hard" puzzle for pen and paper

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



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

PostPosted: Wed Jun 03, 2009 5:20 am    Post subject: A "hard" puzzle for pen and paper Reply with quote

This one offers no obvious freebies.
Code:

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

print and solve at your leisure

Hint: to get started, look for hidden singles ("8" box 1 and 6, "6" in box 4)

Hint #2: naked quad (1357) in row 2.
Back to top
View user's profile Send private message Send e-mail Visit poster's website
arkietech



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

PostPosted: Wed Jun 03, 2009 11:29 am    Post subject: Reply with quote

Excellent! My kind of puzzle. Very Happy
Back to top
View user's profile Send private message
cgordon



Joined: 04 May 2007
Posts: 769
Location: ontario, canada

PostPosted: Wed Jun 03, 2009 3:38 pm    Post subject: Reply with quote

Yes - very good. Seemed like a very "empty" grid at the start. These days I'm enjoying these "Hards" more than many of the VHs - which are often just "Easy's" with a boring wing.
Back to top
View user's profile Send private message
underground



Joined: 02 Jul 2009
Posts: 1

PostPosted: Thu Jul 02, 2009 8:48 am    Post subject: Reply with quote

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



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

PostPosted: Thu Jul 02, 2009 7:45 pm    Post subject: Reply with quote

I used three steps, probably at least one of which wasn't needed.

Quote:
XYZ (157), ER (1) and X-Wing (3)
Back to top
View user's profile Send private message
nataraj



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

PostPosted: Thu Jul 02, 2009 8:07 pm    Post subject: Reply with quote

Quote deleted - Keith

1. "look for hidden single ( 8 ) in box 1" is clear and specific in my book.
2. I hate it when people include hyperlinks to sites that obviously have nothing to do with the post at hand.

3. "hard" puzzles are not meant to be "easy to solve"
4. over and out
Back to top
View user's profile Send private message Send e-mail Visit poster's website
wapati



Joined: 10 Jun 2008
Posts: 472
Location: Brampton, Ontario, Canada.

PostPosted: Thu Jul 02, 2009 8:31 pm    Post subject: Reply with quote

nataraj wrote:

3. "hard" puzzles are not meant to be "easy to solve"


Errmm, that "underground" is a spammer.
Back to top
View user's profile Send private message
nataraj



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

PostPosted: Thu Jul 02, 2009 8:38 pm    Post subject: Reply with quote

yea, I figured as much.

Feel free to delete my post(s) as well, Keith.
Back to top
View user's profile Send private message Send e-mail Visit poster's website
keith



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

PostPosted: Thu Jul 02, 2009 8:49 pm    Post subject: Reply with quote

nataraj wrote:
Feel free to delete my post(s) as well, Keith.


If you want me to delete them, I will. But, I prefer my interventions to be as minimal as possible.

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