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 

Probable stupid question

 
Post new topic   Reply to topic    dailysudoku.com Forum Index -> General discussion
View previous topic :: View next topic  
Author Message
Marty R.



Joined: 12 Feb 2006
Posts: 5122
Location: Rochester, NY, USA

PostPosted: Fri Dec 17, 2010 10:11 pm    Post subject: Probable stupid question Reply with quote

Have you ever seen an invalid puzzle published by a legitimate site?
Back to top
View user's profile Send private message
daj95376



Joined: 23 Aug 2008
Posts: 3855

PostPosted: Fri Dec 17, 2010 11:07 pm    Post subject: Reply with quote

I've seen numerous Windoku puzzles posted with Sudoku in the title. The only way I could tell the difference was the shading on the four additional "boxes" used in a Windoku puzzle. Many of these puzzles have been posted in the Help section of the Players' Forums. The airline magazines are notorious for making this mistake.
Back to top
View user's profile Send private message
Marty R.



Joined: 12 Feb 2006
Posts: 5122
Location: Rochester, NY, USA

PostPosted: Sat Dec 18, 2010 1:01 am    Post subject: Reply with quote

Thanks Danny. I was wondering about the sites that are commonly mentioned around here, like Brain Bashers, Menneske, Vanhegan and the like.
Back to top
View user's profile Send private message
peterj



Joined: 26 Mar 2010
Posts: 974
Location: London, UK

PostPosted: Sat Dec 18, 2010 8:15 pm    Post subject: Reply with quote

Marty, I have never found an invalid one on these mainstream sites - and I usually use SimpleSudoku which checks...

Here is a famous one that was carved into a hill near the M4 (a major "freeway") in the UK...


... sadly it had 1,905 solutions, bit of a waste of an ancient chalk hillside Exclamation
Back to top
View user's profile Send private message
Marty R.



Joined: 12 Feb 2006
Posts: 5122
Location: Rochester, NY, USA

PostPosted: Sun Dec 19, 2010 12:11 am    Post subject: Reply with quote

That's certainly the first hillside one I've heard of. Laughing
Back to top
View user's profile Send private message
keith



Joined: 19 Sep 2005
Posts: 3150
Location: near Detroit, Michigan, USA

PostPosted: Wed Dec 22, 2010 9:01 pm    Post subject: Reply with quote

Marty,

If you search on 'pseudo sudoku' you will find invalid puzzles: Those with many, or no, solutions.

Keith

PS: Currently spending a week in London, courtesy of BAA and BA. On the last flight to land at Heathrow before it was closed on Saturday.
Back to top
View user's profile Send private message
keith



Joined: 19 Sep 2005
Posts: 3150
Location: near Detroit, Michigan, USA

PostPosted: Sun Apr 03, 2011 9:00 pm    Post subject: Reply with quote

Marty R. wrote:
Thanks Danny. I was wondering about the sites that are commonly mentioned around here, like Brain Bashers, Menneske, Vanhegan and the like.

Marty,

The worst transgression I have seen from these sites is to misclassify the difficulty of a puzzle. "Very Hard" does not require advanced moves, for example. That happens occasionally (once per year?) on this site.

There was a thread "Sudokus of shame" on the old Players' Forum that collected invalid puzzles and their sources.

A few years ago I noticed that the Sudoku section of about.com had invalid puzzles. I told them, and the puzzles were replaced with valid ones.

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



Joined: 23 Feb 2010
Posts: 165

PostPosted: Tue Apr 05, 2011 7:44 am    Post subject: Reply with quote

Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    dailysudoku.com Forum Index -> General discussion 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