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- Cycle factorization classes
by Serg » Tue Jul 24, 2012 10:52 pm
- 0 Replies
- 1015 Views
- Last post by Serg
Tue Jul 24, 2012 10:52 pm
- Cycle factorization classes
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- The hardest-ever sudoku?
by dino_hsu_1019 » Thu Jul 12, 2012 10:44 am - 1 Replies
- 1742 Views
- Last post by Pat
Thu Jul 12, 2012 11:09 am
- The hardest-ever sudoku?
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- One-band patterns
1, 2by Serg » Sun Apr 01, 2012 4:16 pm - 16 Replies
- 1560 Views
- Last post by Serg
Tue Jun 12, 2012 7:48 pm
- One-band patterns
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- Invalid (incompletable) 4-template(s)
1, 2by dobrichev » Wed Feb 08, 2012 11:28 pm - 21 Replies
- 1097 Views
- Last post by David P Bird
Sun Feb 12, 2012 10:52 am
- Invalid (incompletable) 4-template(s)
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- 'Sudoku Seasons - Love Quotes Contest'
by 99Games » Thu Feb 09, 2012 10:45 am - 0 Replies
- 727 Views
- Last post by 99Games
Thu Feb 09, 2012 10:45 am
- 'Sudoku Seasons - Love Quotes Contest'
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- sudoku 20*20 (5*4)
by whk01 » Wed Jan 11, 2012 10:38 pm - 0 Replies
- 596 Views
- Last post by whk01
Wed Jan 11, 2012 10:38 pm
- sudoku 20*20 (5*4)
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- Puzzle design by remove-add and remove-remove-add steps
by Thierry Moreau » Mon Jan 02, 2012 6:36 pm - 0 Replies
- 546 Views
- Last post by Thierry Moreau
Mon Jan 02, 2012 6:36 pm
- Puzzle design by remove-add and remove-remove-add steps
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- Super Sudoku Puzzle Solver that has letters & numbers combined?
by angelofthenight » Sun Nov 13, 2011 8:41 pm - 4 Replies
- 1414 Views
- Last post by bundy
Sun Jan 01, 2012 7:41 pm
- Super Sudoku Puzzle Solver that has letters & numbers combined?
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- Happy new 2012 year!
by Serg » Sat Dec 31, 2011 9:54 pm - 0 Replies
- 490 Views
- Last post by Serg
Sat Dec 31, 2011 9:54 pm
- Happy new 2012 year!
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- Puzzle design method, all handcrafted
by Thierry Moreau » Sat Dec 24, 2011 11:16 am - 5 Replies
- 850 Views
- Last post by Thierry Moreau
Tue Dec 27, 2011 4:18 pm
- Puzzle design method, all handcrafted
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- Sparse Matrix Sudoku Problem
by wuzhenzhi » Wed Dec 21, 2011 11:15 am
- 0 Replies
- 639 Views
- Last post by wuzhenzhi
Wed Dec 21, 2011 11:15 am
- Sparse Matrix Sudoku Problem
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- Blank grids
by Hache » Wed Dec 07, 2011 3:55 pm
- 3 Replies
- 1286 Views
- Last post by SadMan
Sun Dec 11, 2011 10:44 pm
- Blank grids
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- On zero solutions
by m_b_metcalf » Mon Nov 28, 2011 2:11 am - 6 Replies
- 708 Views
- Last post by m_b_metcalf
Thu Dec 08, 2011 11:42 pm
- On zero solutions
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- Recommendation for Nintendo DS
by lbayorkie » Sat Sep 03, 2011 2:15 pm - 0 Replies
- 459 Views
- Last post by lbayorkie
Sat Sep 03, 2011 2:15 pm
- Recommendation for Nintendo DS
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- Minimal clues to complete a grid examining k-templates
by dobrichev » Sun Aug 07, 2011 7:43 pm - 2 Replies
- 608 Views
- Last post by dobrichev
Wed Aug 31, 2011 9:38 pm
- Minimal clues to complete a grid examining k-templates
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- Generating all sudokus from a bit pattern
1, 2by ThemePark » Mon Aug 15, 2011 12:21 am - 17 Replies
- 1196 Views
- Last post by ab
Wed Aug 24, 2011 3:53 pm
- Generating all sudokus from a bit pattern
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- Minlex Form: Min and Max Lists / Chaining
by holdout » Sun Jul 31, 2011 10:07 pm
- 14 Replies
- 1597 Views
- Last post by dobrichev
Thu Aug 18, 2011 11:10 pm
- Minlex Form: Min and Max Lists / Chaining
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- Orthogonal sudoku
by giant » Wed Sep 14, 2005 7:49 am - 5 Replies
- 2502 Views
- Last post by Smythe Dakota
Tue Aug 16, 2011 10:50 pm
- Orthogonal sudoku
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- "Graeco-Latin Soduku" challenge
by tinfoil » Fri Jun 17, 2005 6:29 pm - 11 Replies
- 6598 Views
- Last post by tarek
Sun Jul 31, 2011 7:39 pm
- "Graeco-Latin Soduku" challenge
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- Re-symmetricise A Puzzle?
by civiliza » Thu Jul 07, 2011 6:43 pm - 2 Replies
- 510 Views
- Last post by civiliza
Wed Jul 20, 2011 7:14 pm
- Re-symmetricise A Puzzle?
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- How adding another clue can make a puzzle harder?
by JeJ » Fri Mar 11, 2011 7:54 pm - 8 Replies
- 732 Views
- Last post by RW
Sun May 22, 2011 2:26 pm
- How adding another clue can make a puzzle harder?
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- The "right" approach to solve a puzzle
by JeJ » Tue Mar 01, 2011 9:54 pm - 4 Replies
- 635 Views
- Last post by kifotv
Sun May 22, 2011 7:03 am
- The "right" approach to solve a puzzle
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- Valid puzzles for Fractal Pattern
1, 2by Serg » Sat Apr 02, 2011 12:10 pm - 16 Replies
- 1246 Views
- Last post by dobrichev
Thu Apr 28, 2011 4:12 pm
- Valid puzzles for Fractal Pattern
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- How do you type the code in a text editor?
by JeJ » Sat Feb 12, 2011 4:21 pm - 3 Replies
- 535 Views
- Last post by Pat
Sun Feb 13, 2011 12:45 pm
- How do you type the code in a text editor?
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- Finding unavoidable sets
by RW » Fri Feb 11, 2011 8:54 am - 2 Replies
- 957 Views
- Last post by RW
Fri Feb 11, 2011 10:17 am
- Finding unavoidable sets
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- The making of a gotchi, a simple way to find extreme sudokus
1, 2by eleven » Thu Jan 06, 2011 7:55 pm - 18 Replies
- 1702 Views
- Last post by eleven
Thu Jan 20, 2011 8:47 pm
- The making of a gotchi, a simple way to find extreme sudokus
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- Sudoku generator
by lerxst » Mon Dec 13, 2010 6:16 pm - 1 Replies
- 485 Views
- Last post by m_b_metcalf
Mon Dec 13, 2010 9:26 pm
- Sudoku generator
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- Low-Stepper STD-27
by Pyrrho » Fri Dec 10, 2010 7:03 pm - 4 Replies
- 598 Views
- Last post by m_b_metcalf
Mon Dec 13, 2010 5:43 pm
- Low-Stepper STD-27
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- Rating standard
by lerxst » Mon Dec 13, 2010 4:55 am - 2 Replies
- 471 Views
- Last post by ronk
Mon Dec 13, 2010 1:51 pm
- Rating standard
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