FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in          Games  Calendar Log in to check your private messages    Is there a name for this configuration?          Sudoku Programmers Forum Index -> Solving sudoku View previous topic :: View next topic   Author Message Ruud Site Admin Joined: 17 Sep 2005 Posts: 708 : Location: Netherlands Items Posted: Wed Oct 05, 2005 11:17 am    Post subject: Is there a name for this configuration? I came across a puzzle that contains the following configuration: Code: . . .|. . . . a .|. . x . . .|. . . -----+----- . . .|. . c . A .|b . . . . .|. . d All cells shown are candidates for a certain digit. Note that there is a conjugate pair a-A Deductions: - when a contains the digit, x will be eliminated. - when A contains the digit, b will be eliminated, forcing c-d to a locked pair, which in turn will eliminate x. Therefore, x can never contain the digit and can be eliminated. My solver eliminated x based on its templates, and I used manual coloring to come to the same conclusion. The reasoning is very similar to that of remote locked pairs, but with this candidate b linking the 2 pairs. Is there a name for this pattern? Does it deserve a name? Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         Sudoku Programmers Forum Index -> Solving sudoku All times are GMT Page 1 of 1   Jump to: Select a forum Sudoku----------------Solving sudokuSetting sudokuProgramming sudokuThe mathematics of sudokuExotic sudoku Library----------------PuzzlesSoftwareSudoku elsewhere Not sudoku----------------Random thoughtsForum feedback  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 Igloo Theme Version 1.0 :: Created By: Andrew Charron