FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in          Games  Calendar Log in to check your private messages    Help with multicolors          Sudoku Programmers Forum Index -> Solving sudoku View previous topic :: View next topic   Author Message FireMag3 Joined: 06 Apr 2006 Posts: 4 : Items Posted: Sun Apr 09, 2006 3:33 am    Post subject: Help with multicolors I've been trying multicolors, but sometimes it just doesnt seems to work, likely because I'm not doing it right. Here are 2 ss of those cases, can someone explain me what I'm missing? The cells I tried to eliminate are marked Code:  *-----------------------------------------------------------*  | 4     27    8     | 3     5     267   | 26    1     9     |  | 36    27    36    | 1     9     247   | 48    278   5     |  | 5     1     9     | 8     27    2467  | 34    2367  27    |  |-------------------+-------------------+-------------------|  | 2     89    37    | 4     6     379   | 5     78    1     |  | 38    6     5     | 2     37    1     | 9     4     78    |  | 1     49    47    | 79    8     5     | 26    26    3     |  |-------------------+-------------------+-------------------|  | 89    48    24    | 79    237   2379  | 1     5     6     |  | 7     5     12    | 6     4     29    | 38    239   28    |  | 69    3     26    | 5     1     8     | 7     29    4     |  *-----------------------------------------------------------*  *-----------------------------------------------------------*  | 4     27    8     | 3     5     267   | 26    1     9     |  | 36    27    36    | 1     9     247   | 48    278   5     |  | 5     1     9     | 8     27    2467  | 34    2367  27    |  |-------------------+-------------------+-------------------|  | 2     89    37    | 4     6     379   | 5     78    1     |  | 38    6     5     | 2     37    1     | 9     4     78    |  | 1     49    47    | 79    8     5     | 26    26    3     |  |-------------------+-------------------+-------------------|  | 89    48    24    | 79    237   2379  | 1     5     6     |  | 7     5     1     | 6     4     29    | 38    239   28    |  | 69    3     26    | 5     1     8     | 7     29    4     |  *-----------------------------------------------------------* thanks Back to top Myth Jellies Joined: 20 Sep 2005 Posts: 14 : Items Posted: Sun Apr 09, 2006 4:20 am    Post subject: screenshot 1: Since blue and pink share a group (exclude each other) then we know that either green or orange (or both) are true. You can only remove candidates from cells which see both a green and orange cell. screenshot 2: Blue and orange exclude each other. Green or pink must be true. Cell needs to see both green and pink for multicolor elimination. _________________ Myth Jellies Back to top angusj Site Admin Joined: 18 Jun 2005 Posts: 406 : Items Posted: Sun Apr 09, 2006 6:12 am    Post subject: This link summarises the two basic rules of multi-color elimination: http://www.setbb.com/phpbb/viewtopic.php?p=2575&mforum=sudoku#2575 Back to top FireMag3 Joined: 06 Apr 2006 Posts: 4 : Items Posted: Mon Apr 10, 2006 2:13 am    Post subject: thanks, I get now the multicolors logic ^^ 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