SudokuSolver Forum

A forum for Sudoku enthusiasts to share puzzles, techniques and software
It is currently Thu Mar 28, 2024 4:59 pm

All times are UTC




Post new topic Reply to topic  [ 3 posts ] 
Author Message
 Post subject: Swordfish
PostPosted: Mon Jun 23, 2008 5:43 pm 
Offline
Grand Master
Grand Master
User avatar

Joined: Thu Apr 24, 2008 4:27 pm
Posts: 791
I think I've gotten reasonably proficient at identifying swordfish, but they never seem to eliminate any candidates (at least by the time I find them). Is that anyone else's experience, as well?


Top
 Profile  
Reply with quote  
 Post subject: Re: Swordfish
PostPosted: Mon Jun 23, 2008 6:36 pm 
Offline
Grand Master
Grand Master
User avatar

Joined: Mon Apr 21, 2008 10:32 am
Posts: 868
enxio27 wrote:
I think I've gotten reasonably proficient at identifying swordfish, but they never seem to eliminate any candidates (at least by the time I find them). Is that anyone else's experience, as well?
Spotting a Swordfish that does not eliminate any candidates is easier than spotting one that does. I have found many Swordfish that have eliminated several candidates.

_________________
Quis custodiet ipsos custodes?
Normal: [D  Y-m-d,  G:i]     PM->email: [D, d M Y H:i:s]


Top
 Profile  
Reply with quote  
 Post subject: Re: Swordfish
PostPosted: Mon Jun 23, 2008 9:56 pm 
Offline
Grand Master
Grand Master
User avatar

Joined: Thu Apr 24, 2008 4:27 pm
Posts: 791
Børge wrote:
Spotting a Swordfish that does not eliminate any candidates is easier than spotting one that does. I have found many Swordfish that have eliminated several candidates.


I usually don't find swordfish until after my second pass through a puzzle. (Same goes for quads and most triples.) By that time, I've already eliminated quite a few candidates with singles, pairs, locking candidates, and the occasional X-wing. Perhaps by that time, there's nothing left for the swordfish to eliminate.


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 3 posts ] 

All times are UTC


Who is online

Users browsing this forum: No registered users and 1 guest


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 post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Group