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- A question about difficulty rating
by qiuyanzhe » Fri Aug 31, 2018 9:19 am - 6 Replies
- 1521 Views
- Last post by eleven
Fri Aug 31, 2018 1:50 pm
- A question about difficulty rating
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- Solution grids with higher potential to have 17-clue puzzles
1, 2
by dobrichev » Fri Aug 03, 2018 3:34 pm
- 19 Replies
- 4803 Views
- Last post by blue
Thu Aug 16, 2018 10:44 pm
- Solution grids with higher potential to have 17-clue puzzles
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- Minimal clues to complete a grid examining k-templates
by dobrichev » Sun Aug 07, 2011 7:43 pm - 3 Replies
- 2368 Views
- Last post by dobrichev
Fri Aug 03, 2018 11:45 am
- Minimal clues to complete a grid examining k-templates
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- SudokuP Empty Boxes
by Serg » Wed Jul 18, 2018 12:47 pm - 7 Replies
- 1535 Views
- Last post by Serg
Sat Jul 28, 2018 5:28 pm
- SudokuP Empty Boxes
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- A couple of questions by a newcomer.
by Thedutchguy87 » Fri Apr 27, 2018 4:20 pm - 11 Replies
- 2081 Views
- Last post by ghfick
Sat Jun 16, 2018 11:53 pm
- A couple of questions by a newcomer.
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- Could the accepted answer for max solutions be wrong.
1, 2by Sojourner9 » Sun Mar 11, 2018 6:31 pm - 20 Replies
- 3573 Views
- Last post by Sojourner9
Fri May 18, 2018 9:09 pm
- Could the accepted answer for max solutions be wrong.
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- Change Started Invalid Puzzle
by ttst53 » Thu May 17, 2018 11:37 pm - 0 Replies
- 1164 Views
- Last post by ttst53
Thu May 17, 2018 11:37 pm
- Change Started Invalid Puzzle
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- A question of tecnique
by VMSguy1 » Wed May 16, 2018 8:40 pm - 0 Replies
- 1229 Views
- Last post by VMSguy1
Wed May 16, 2018 8:40 pm
- A question of tecnique
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- 2 question
by Biomage » Thu Apr 12, 2018 1:26 am - 1 Replies
- 1277 Views
- Last post by Leren
Thu Apr 12, 2018 8:42 pm
- 2 question
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- Rectángulos Únicos
by coyote56 » Sun Mar 18, 2018 3:21 pm - 2 Replies
- 1508 Views
- Last post by JasonLion
Wed Mar 21, 2018 4:46 pm
- Rectángulos Únicos
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- Perfectly Cyclical Sudoku's
by Mathimagics » Fri Mar 09, 2018 9:57 am - 0 Replies
- 1373 Views
- Last post by Mathimagics
Fri Mar 09, 2018 9:57 am
- Perfectly Cyclical Sudoku's
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- HodokuSE, a new system of rating
1, 2 by 200e200w » Thu Feb 08, 2018 6:08 pm
- 15 Replies
- 4170 Views
- Last post by SpAce
Thu Feb 15, 2018 10:34 am
- HodokuSE, a new system of rating
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- 200e200w's Top 250
by 200e200w » Sun Feb 04, 2018 1:25 pm
- 0 Replies
- 1420 Views
- Last post by 200e200w
Sun Feb 04, 2018 1:25 pm
- 200e200w's Top 250
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- Enumeration of symmetrical patterns
1, 2by Serg » Sun Jan 21, 2018 11:45 pm - 24 Replies
- 4733 Views
- Last post by Serg
Tue Jan 30, 2018 10:27 pm
- Enumeration of symmetrical patterns
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- Sudoku Validation
by Eltee27 » Tue Jan 16, 2018 1:06 am - 3 Replies
- 2189 Views
- Last post by Eltee27
Wed Jan 17, 2018 2:03 am
- Sudoku Validation
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- Easter Monster Derivatives
by FLOCKMAN » Sat Dec 16, 2017 11:46 am
- 9 Replies
- 2103 Views
- Last post by FLOCKMAN
Tue Jan 16, 2018 12:41 pm
- Easter Monster Derivatives
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- Transversals in Sudoku Squares
1 ... 4, 5, 6by Mathimagics » Tue Jan 02, 2018 7:25 am - 75 Replies
- 10198 Views
- Last post by Mathimagics
Mon Jan 08, 2018 10:58 pm
- Transversals in Sudoku Squares
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- Snail Trail
by FLOCKMAN » Wed Nov 01, 2017 4:54 pm - 9 Replies
- 2260 Views
- Last post by StrmCkr
Tue Dec 19, 2017 8:12 am
- Snail Trail
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- Sudoku Grid
by Jill » Wed Nov 08, 2017 4:07 pm - 1 Replies
- 1388 Views
- Last post by Leren
Thu Nov 09, 2017 9:02 pm
- Sudoku Grid
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- No new 17s within {-3+3}
by dobrichev » Mon Jun 20, 2016 10:47 am - 9 Replies
- 3462 Views
- Last post by coloin
Sat Oct 21, 2017 9:33 am
- No new 17s within {-3+3}
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- Hidden Quadruple (Quad) puzzles
1, 2 by tarek » Tue Jan 03, 2012 10:27 am
- 29 Replies
- 6237 Views
- Last post by tarek
Tue Sep 12, 2017 7:51 pm
- Hidden Quadruple (Quad) puzzles
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- Colored Sudokus Easier than with Numbers?
by bloggeroliver » Wed Jul 26, 2017 11:11 pm - 1 Replies
- 1510 Views
- Last post by yaling.zheng
Sat Jul 29, 2017 3:21 am
- Colored Sudokus Easier than with Numbers?
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- What's ur best time for easy sudoku?
by fragyn » Wed Jul 12, 2017 6:41 pm - 0 Replies
- 1465 Views
- Last post by fragyn
Wed Jul 12, 2017 6:41 pm
- What's ur best time for easy sudoku?
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- minimum number of clues 16x16 and higher
by Moschopulus » Fri Aug 12, 2005 12:00 pm - 7 Replies
- 5815 Views
- Last post by coloin
Tue Jul 11, 2017 2:28 pm
- minimum number of clues 16x16 and higher
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- Number of minimal puzzles per ED valid pattern with N clues
1, 2by coloin » Sat Apr 11, 2015 3:21 pm - 24 Replies
- 4450 Views
- Last post by coloin
Tue Apr 18, 2017 10:02 am
- Number of minimal puzzles per ED valid pattern with N clues
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- List of all 9x9 boards or all the 9x9 equivalence classes
by JC Sims » Thu Apr 13, 2017 10:47 am - 6 Replies
- 1737 Views
- Last post by rjamil
Fri Apr 14, 2017 6:45 pm
- List of all 9x9 boards or all the 9x9 equivalence classes
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- new game
by Marcelo Pars » Mon Mar 13, 2017 6:42 pm - 1 Replies
- 1185 Views
- Last post by JasonLion-Admin
Tue Mar 14, 2017 2:20 am
- new game
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- What Does stte Mean?
by keith » Tue Feb 14, 2017 9:45 am - 13 Replies
- 2718 Views
- Last post by Leren
Sat Feb 18, 2017 3:06 am
- What Does stte Mean?
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- Help finding Sudoku Book
by thebigguY » Mon Nov 28, 2016 3:08 am - 1 Replies
- 1510 Views
- Last post by ghfick
Fri Dec 02, 2016 10:42 pm
- Help finding Sudoku Book
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- Canonical Form
1 ... 8, 9, 10by Mike Barker » Sat Jan 13, 2007 10:51 pm - 145 Replies
- 93113 Views
- Last post by Maq777
Wed Nov 23, 2016 1:57 am
- Canonical Form
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- Generalization of Sudoku
by Esteban_Zia » Tue Nov 15, 2016 12:16 pm - 2 Replies
- 1600 Views
- Last post by David P Bird
Wed Nov 16, 2016 11:36 am
- Generalization of Sudoku
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- Codes For Diabolicals
by Yogi » Fri Jun 17, 2016 11:36 pm
- 7 Replies
- 1986 Views
- Last post by Yogi
Sun Sep 11, 2016 11:15 pm
- Codes For Diabolicals
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- Skyscrapers, Kites & Empty Rectangles
by Yogi » Sun Sep 04, 2016 5:40 am
- 4 Replies
- 1551 Views
- Last post by eleven
Tue Sep 06, 2016 7:58 pm
- Skyscrapers, Kites & Empty Rectangles
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- Trial & Error
by Yogi » Tue Jun 21, 2016 7:49 am - 8 Replies
- 2256 Views
- Last post by JasonLion
Thu Jun 23, 2016 4:49 pm
- Trial & Error
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- What's Happening to Sudoku Puzzles?
by nedBlake » Sun Jun 05, 2016 8:01 pm - 2 Replies
- 1595 Views
- Last post by nedBlake
Mon Jun 06, 2016 1:54 pm
- What's Happening to Sudoku Puzzles?
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