FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in          Games  Calendar Log in to check your private messages    Puzzle collections          Sudoku Programmers Forum Index -> Puzzles View previous topic :: View next topic   Author Message haba Joined: 18 Apr 2010 Posts: 2 : Items Posted: Sun Apr 18, 2010 9:54 am    Post subject: Puzzle collections Hello! Can anyone tell me where I can find some sudoku puzzle collections divided by classes (easy, medium, hard, etc) ? Preferably in some format, such as sdm? Thank You very much Back to top wapati Joined: 12 Jun 2007 Posts: 622 : Location: Canada Items Posted: Mon Apr 19, 2010 1:25 am    Post subject: Re: Puzzle collections haba wrote: Hello! Can anyone tell me where I can find some sudoku puzzle collections divided by classes (easy, medium, hard, etc) ? Preferably in some format, such as sdm? Thank You very much Rating puzzles, that is sorting them by difficulty, is much harder than solving them. Your question has no answer, except possibly to you, and you will change. Back to top haba Joined: 18 Apr 2010 Posts: 2 : Items Posted: Mon Apr 19, 2010 6:09 am    Post subject: Right, but from looking around the forum, I see some people are rating the puzzles according to their difficulty by looking at the type of techniques used. I guess this is the best way so far? Back to top champagne Joined: 14 Apr 2010 Posts: 6 : Items Posted: Tue Apr 20, 2010 5:06 am    Post subject: haba wrote: Right, but from looking around the forum, I see some people are rating the puzzles according to their difficulty by looking at the type of techniques used. I guess this is the best way so far? another not really positive answer. The terms "easy, medium, hard" correspond to very different puzzles whether you are looking at published puzzles or really "hard puzzles", normally not published in the newspapers. If you are looking for puzzles that can not be solved just using your pencil, then you can find a nice collection of such puzzles in the "lost so far" player's forum. I personnally worked with the results of the patterns game, about 8000 puzzles giving a good sample of various difficulties. Some files are available in different places (top 95 top 1465 gsf's file, tarek's file) but this is more if you are looking for very hard puzzles; Regarding the rating, you can download "sudoku explainer" , not very good for hardest, but a well known reference champagne Back to top Pat Joined: 06 Sep 2006 Posts: 128 : Items Posted: Wed Apr 21, 2010 7:08 am    Post subject: champagne wrote: If you are looking for puzzles that can not be solved just using your pencil, then you can find a nice collection of such puzzles in the "lost so far" the Sudoku Players' Forum. I personnally worked with the results of the Patterns Game, about 8000 puzzles giving a good sample of various difficulties. Regarding the rating, you can download Sudoku Explainer -- not very good for hardest, but a well known reference. rated puzzles from Patterns Game # 106 have now been posted at http://www.setbb.com/sudoku/viewtopic.php?t=1918 Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         Sudoku Programmers Forum Index -> Puzzles 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