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 

Bug + 1

 
Post new topic   Reply to topic    dailysudoku.com Forum Index -> Solving techniques, and terminology
View previous topic :: View next topic  
Author Message
Captain Pete



Joined: 09 Jun 2007
Posts: 55
Location: Oley, PA

PostPosted: Sun Apr 27, 2008 3:31 pm    Post subject: Bug + 1 Reply with quote

In the discussion of another recent puzzle, someone referred to a BUG + 1 "within a square." I am familiar with the BUG +1 in the entire puzzle, ie, all the remaining cells in the puzzle have two digits except one with three. But, how does a BUG + 1 "within a square" work.
Back to top
View user's profile Send private message
keith



Joined: 19 Sep 2005
Posts: 3136
Location: near Detroit, Michigan, USA

PostPosted: Sun Apr 27, 2008 8:27 pm    Post subject: Reply with quote

I do not recall the comment. Maybe you should ask the question in the original thread?

I might guess that the comment means the BUG+1 was solved by looking at a 3x3 box. Figure out the deadly pattern (DP), which is when each unsolved candidate appears exactly twice in the box. Then, use the candidate(s) in the +1 cell that destroy the DP.

(Actually, you should also check that the same DP arises when you look at the row and column.)

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 -> Solving techniques, and terminology 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