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- Sudokus of Shame
1 ... 4, 5, 6
by Moschopulus » Thu Feb 02, 2006 1:19 am
- 86 Replies
- 57640 Views
- Last post by enxio27
Tue Dec 11, 2018 2:53 pm
- Sudokus of Shame
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- Puzzle collections sorted by solving qualities
by tso » Thu Aug 03, 2006 5:38 pm - 8 Replies
- 22051 Views
- Last post by Pat
Sun Aug 19, 2007 2:39 pm
- Puzzle collections sorted by solving qualities
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- Low/Hi Clue Thresholds
1 ... 8, 9, 10 by Mathimagics » Wed Jun 26, 2019 2:56 am
- 137 Replies
- 2162 Views
- Last post by coloin
Thu Oct 10, 2019 10:49 pm
- Low/Hi Clue Thresholds
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- Newspaper Ratings
by m_b_metcalf » Tue Oct 01, 2019 3:08 pm - 1 Replies
- 49 Views
- Last post by dobrichev
Tue Oct 01, 2019 3:31 pm
- Newspaper Ratings
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- Patterns Game benchmark file
by m_b_metcalf » Thu Nov 19, 2015 8:28 am
- 11 Replies
- 925 Views
- Last post by champagne
Mon Sep 30, 2019 2:10 pm
- Patterns Game benchmark file
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- The highest rated 19 clue puzzle
1, 2by coloin » Mon Sep 02, 2019 9:27 pm - 21 Replies
- 587 Views
- Last post by coloin
Fri Sep 27, 2019 10:33 am
- The highest rated 19 clue puzzle
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- How to Solve a Sudoku
by luanvanviet » Fri Sep 27, 2019 9:40 am - 0 Replies
- 48 Views
- Last post by luanvanviet
Fri Sep 27, 2019 9:40 am
- How to Solve a Sudoku
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- Intrinsically Difficult Patterns
by m_b_metcalf » Wed Apr 01, 2009 4:38 pm - 2 Replies
- 982 Views
- Last post by champagne
Sun Sep 08, 2019 12:26 pm
- Intrinsically Difficult Patterns
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- Maximum number of clues for a given SE rating
1 ... 7, 8, 9by 999_Springs » Thu Jul 24, 2008 4:10 pm - 122 Replies
- 20507 Views
- Last post by 999_Springs
Tue Aug 27, 2019 8:08 pm
- Maximum number of clues for a given SE rating
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- No grids with MCN > 16
by Mathimagics » Tue Jul 23, 2019 6:23 pm
- 7 Replies
- 191 Views
- Last post by Mathimagics
Fri Jul 26, 2019 9:37 am
- No grids with MCN > 16
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- Grids containing a 21 but no 20
1, 2by blue » Wed Jun 26, 2019 5:16 pm - 17 Replies
- 387 Views
- Last post by Mathimagics
Wed Jul 24, 2019 8:06 pm
- Grids containing a 21 but no 20
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- Rating Invalid puzzles
by dobrichev » Mon Jul 22, 2019 2:39 pm - 11 Replies
- 186 Views
- Last post by denis_berthier
Wed Jul 24, 2019 2:29 pm
- Rating Invalid puzzles
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- Grids with minimal UA18s for all 2-row,2-col,2-digit UA sets
1, 2by blue » Sun Jun 30, 2019 1:39 pm - 19 Replies
- 436 Views
- Last post by champagne
Wed Jul 24, 2019 6:32 am
- Grids with minimal UA18s for all 2-row,2-col,2-digit UA sets
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- Minimum number of checks
1 ... 4, 5, 6 by denis_berthier » Sun Jun 30, 2019 6:18 am
- 83 Replies
- 1310 Views
- Last post by StrmCkr
Mon Jul 22, 2019 7:06 pm
- Minimum number of checks
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- Intercalates v UA4's
1, 2by Mathimagics » Fri Jul 19, 2019 7:57 am - 15 Replies
- 200 Views
- Last post by dobrichev
Mon Jul 22, 2019 2:22 pm
- Intercalates v UA4's
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- Sic Transit Daily Sudoku
by keith » Sun Jul 07, 2019 2:10 pm - 0 Replies
- 103 Views
- Last post by keith
Sun Jul 07, 2019 2:10 pm
- Sic Transit Daily Sudoku
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- UA Set for a Given Grid
1, 2, 3by Mathimagics » Fri Jun 28, 2019 3:50 pm - 31 Replies
- 436 Views
- Last post by Mathimagics
Mon Jul 01, 2019 12:05 pm
- UA Set for a Given Grid
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- Android Sudoku app
by WillieBoykin » Fri Jun 28, 2019 5:45 am - 2 Replies
- 129 Views
- Last post by 1to9only
Fri Jun 28, 2019 7:56 pm
- Android Sudoku app
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- Investigation of one-band-free patterns
by dogiaokhanhlinh » Mon May 27, 2019 9:33 am - 3 Replies
- 259 Views
- Last post by Mathimagics
Wed May 29, 2019 2:54 am
- Investigation of one-band-free patterns
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- Sudoku variants summary
by Wecoc » Mon May 13, 2019 6:38 pm - 0 Replies
- 275 Views
- Last post by Wecoc
Mon May 13, 2019 6:38 pm
- Sudoku variants summary
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- How to Solve Sudoku Puzzles
by luanvanviet » Wed Feb 13, 2019 8:27 am - 1 Replies
- 309 Views
- Last post by susannelson
Fri May 10, 2019 6:37 am
- How to Solve Sudoku Puzzles
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- Creating a puzzle, help
by Trilola » Sun Apr 07, 2019 2:01 am - 7 Replies
- 273 Views
- Last post by brunoz
Mon May 06, 2019 9:22 am
- Creating a puzzle, help
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- hardest 6x6?
1, 2, 3, 4 by 999_Springs » Sun Dec 30, 2018 2:16 pm
- 46 Replies
- 1367 Views
- Last post by qiuyanzhe
Wed Apr 24, 2019 9:49 am
- hardest 6x6?
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- gaming system and method for sudoku-based game - patent
by 1to9only » Fri Apr 12, 2019 9:19 am - 0 Replies
- 177 Views
- Last post by 1to9only
Fri Apr 12, 2019 9:19 am
- gaming system and method for sudoku-based game - patent
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- Minimum givens on larger puzzles
1, 2 by mwalimu » Tue Sep 05, 2006 11:15 pm
- 27 Replies
- 3861 Views
- Last post by Mathimagics
Tue Apr 09, 2019 6:10 pm
- Minimum givens on larger puzzles
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- Sudoku Survey
by aml » Thu Feb 14, 2019 2:03 pm - 6 Replies
- 344 Views
- Last post by Mathimagics
Sat Feb 23, 2019 8:37 pm
- Sudoku Survey
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- ColorKu inspired sculpture
by drepetto » Tue Feb 12, 2019 9:04 pm
- 0 Replies
- 205 Views
- Last post by drepetto
Tue Feb 12, 2019 9:04 pm
- ColorKu inspired sculpture
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- Viết thuê khóa luận mẫu kết luận năng lực cạnh tranh doanh n
by hoangtaybaokiem1993 » Mon Jan 14, 2019 4:45 am - 0 Replies
- 264 Views
- Last post by hoangtaybaokiem1993
Mon Jan 14, 2019 4:45 am
- Viết thuê khóa luận mẫu kết luận năng lực cạnh tranh doanh n
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- Counting minimal puzzles: subsets, supersets, etc.
by hoangtaybaokiem1993 » Mon Jan 14, 2019 4:45 am - 0 Replies
- 189 Views
- Last post by hoangtaybaokiem1993
Mon Jan 14, 2019 4:45 am
- Counting minimal puzzles: subsets, supersets, etc.
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- Nomenclatura
by coyote56 » Tue Feb 13, 2018 9:48 pm - 1 Replies
- 551 Views
- Last post by NicoleAngela
Sat Jan 12, 2019 10:18 am
- Nomenclatura
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- My Nightmares and One-Trick Ponies
by 200e200w » Sun Jan 28, 2018 7:47 pm
- 3 Replies
- 626 Views
- Last post by NicoleAngela
Sat Jan 12, 2019 10:16 am
- My Nightmares and One-Trick Ponies
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- i have noticed that some puzzles
by tarek » Wed Jan 09, 2019 3:15 pm - 0 Replies
- 294 Views
- Last post by tarek
Wed Jan 09, 2019 3:15 pm
- i have noticed that some puzzles
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- Did I just break the World Record of Speed Sudoku?!!
by Madolite » Tue Dec 11, 2018 2:55 am
- 11 Replies
- 1845 Views
- Last post by Madolite
Tue Jan 08, 2019 9:09 am
- Did I just break the World Record of Speed Sudoku?!!
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- Latin Phrasebook?
by Mathimagics » Thu Dec 27, 2018 4:28 am - 2 Replies
- 297 Views
- Last post by Mathimagics
Thu Dec 27, 2018 12:05 pm
- Latin Phrasebook?
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- Hard 5*5 Latin Squares
by qiuyanzhe » Wed Sep 19, 2018 4:22 pm - 7 Replies
- 544 Views
- Last post by qiuyanzhe
Thu Dec 27, 2018 9:53 am
- Hard 5*5 Latin Squares
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- Sudoku Symmetry Group (minimal spec)
1 ... 4, 5, 6by Mathimagics » Sat Dec 15, 2018 9:14 pm - 86 Replies
- 1351 Views
- Last post by blue
Thu Dec 27, 2018 8:53 am
- Sudoku Symmetry Group (minimal spec)
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