Everything about Sudoku that doesn't fit in one of the other sections
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- A Pure Swordfish Collection
by tarek » Mon Dec 17, 2007 11:50 pm
- 73 Replies
- 20623 Views
- Last post by Pat
Thu Nov 15, 2012 2:41 pm
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- even & odd numbers formation
by 7b53 » Thu Oct 04, 2012 4:11 am
- 5 Replies
- 1508 Views
- Last post by Pat
Wed Oct 10, 2012 1:20 pm
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- Andrew Stuart - Weekly Extreme 'Unsolveable' Sudoku Puzzle
by JC Van Hay » Fri Apr 06, 2012 2:23 pm
- 11 Replies
- 2861 Views
- Last post by champagne
Sun Sep 30, 2012 3:26 pm
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- Does adding colors with numbers help solving sudoku?
by sukugo » Sat Sep 15, 2012 12:24 am
- 1 Replies
- 1191 Views
- Last post by JasonLion
Sat Sep 15, 2012 6:32 pm
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- Extremely Hard Sudoku
by TheMoop » Fri Aug 24, 2012 1:03 am
- 2 Replies
- 1711 Views
- Last post by JasonLion
Fri Aug 24, 2012 12:46 pm
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- Telkin Hard Sudoku Thread
by Telkin » Wed Jul 11, 2012 9:52 pm
- 3 Replies
- 1251 Views
- Last post by Pat
Wed Jul 25, 2012 7:54 am
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- Cycle factorization classes
by Serg » Tue Jul 24, 2012 10:52 pm
- 0 Replies
- 1772 Views
- Last post by Serg
Tue Jul 24, 2012 10:52 pm
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- The hardest-ever sudoku?
by dino_hsu_1019 » Thu Jul 12, 2012 10:44 am
- 1 Replies
- 2428 Views
- Last post by Pat
Thu Jul 12, 2012 11:09 am
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- A Pure X-Wing Collection.
by Ocean » Fri Apr 28, 2006 7:54 pm
- 64 Replies
- 30627 Views
- Last post by Pat
Thu Jun 21, 2012 10:14 am
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- One-band patterns
by Serg » Sun Apr 01, 2012 4:16 pm
- 16 Replies
- 3014 Views
- Last post by Serg
Tue Jun 12, 2012 7:48 pm
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- One-clue-boxes patterns
by Serg » Fri Sep 30, 2011 11:01 pm
- 59 Replies
- 6514 Views
- Last post by Serg
Wed May 23, 2012 9:26 pm
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- Investigation of one-band-free patterns
by Serg » Sun Feb 06, 2011 5:02 pm
- 41 Replies
- 4767 Views
- Last post by Afmob
Fri Apr 20, 2012 2:39 pm
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- Backdoors
by Gorbi » Wed Apr 04, 2012 3:05 pm
- 3 Replies
- 1396 Views
- Last post by RW
Tue Apr 10, 2012 9:06 am
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- New Solving Technique (I think)
by pjb » Tue Jan 10, 2012 5:10 am
- 117 Replies
- 12525 Views
- Last post by pjb
Thu Feb 23, 2012 9:12 am
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- Invalid (incompletable) 4-template(s)
by dobrichev » Wed Feb 08, 2012 11:28 pm
- 21 Replies
- 2570 Views
- Last post by David P Bird
Sun Feb 12, 2012 10:52 am
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- 'Sudoku Seasons - Love Quotes Contest'
by 99Games » Thu Feb 09, 2012 10:45 am
- 0 Replies
- 1366 Views
- Last post by 99Games
Thu Feb 09, 2012 10:45 am
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- sudoku 20*20 (5*4)
by whk01 » Wed Jan 11, 2012 10:38 pm
- 0 Replies
- 1233 Views
- Last post by whk01
Wed Jan 11, 2012 10:38 pm
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- Solve Every Sudoku without Guessing
by sdk_fan » Thu Sep 29, 2011 7:18 am
- 63 Replies
- 9968 Views
- Last post by Serg
Tue Jan 10, 2012 5:23 pm
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- Collection of sudokus
by lerxst » Tue Nov 15, 2011 4:09 pm
- 36 Replies
- 4744 Views
- Last post by Pat
Thu Jan 05, 2012 8:17 am
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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
- 1256 Views
- Last post by Thierry Moreau
Mon Jan 02, 2012 6:36 pm
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- Super Sudoku Puzzle Solver that has letters & numbers combined?
by angelofthenight » Sun Nov 13, 2011 8:41 pm
- 4 Replies
- 2729 Views
- Last post by bundy
Sun Jan 01, 2012 7:41 pm
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- Happy new 2012 year!
by Serg » Sat Dec 31, 2011 9:54 pm
- 0 Replies
- 1081 Views
- Last post by Serg
Sat Dec 31, 2011 9:54 pm
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- Puzzle design method, all handcrafted
by Thierry Moreau » Sat Dec 24, 2011 11:16 am
- 5 Replies
- 1665 Views
- Last post by Thierry Moreau
Tue Dec 27, 2011 4:18 pm
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- Sparse Matrix Sudoku Problem
by wuzhenzhi » Wed Dec 21, 2011 11:15 am
- 0 Replies
- 1239 Views
- Last post by wuzhenzhi
Wed Dec 21, 2011 11:15 am
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- Blank grids
by Hache » Wed Dec 07, 2011 3:55 pm
- 3 Replies
- 2218 Views
- Last post by SadMan
Sun Dec 11, 2011 10:44 pm
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- On zero solutions
by m_b_metcalf » Mon Nov 28, 2011 2:11 am
- 6 Replies
- 1382 Views
- Last post by m_b_metcalf
Thu Dec 08, 2011 11:42 pm
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- About Red Ed's Sudoku symmetry group
by eleven » Thu Dec 25, 2008 9:07 am
- 204 Replies
- 37996 Views
- Last post by eleven
Tue Nov 08, 2011 9:50 pm
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- Recommendation for Nintendo DS
by lbayorkie » Sat Sep 03, 2011 2:15 pm
- 0 Replies
- 1034 Views
- Last post by lbayorkie
Sat Sep 03, 2011 2:15 pm
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- The SUPERIOR thread
by tarek » Sun Mar 19, 2006 3:52 pm
- 284 Replies
- 157915 Views
- Last post by Pat
Thu Aug 25, 2011 2:50 pm
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- Generating all sudokus from a bit pattern
by ThemePark » Mon Aug 15, 2011 12:21 am
- 17 Replies
- 2778 Views
- Last post by ab
Wed Aug 24, 2011 3:53 pm
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- Orthogonal sudoku
by giant » Wed Sep 14, 2005 7:49 am
- 5 Replies
- 4969 Views
- Last post by Smythe Dakota
Tue Aug 16, 2011 10:50 pm
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- How to prove non-existance of 8-clue valid puzzles?
by Serg » Sun Jun 26, 2011 12:53 pm
- 49 Replies
- 5361 Views
- Last post by Serg
Sat Aug 06, 2011 8:24 pm
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- "Graeco-Latin Soduku" challenge
by tinfoil » Fri Jun 17, 2005 6:29 pm
- 11 Replies
- 8587 Views
- Last post by tarek
Sun Jul 31, 2011 7:39 pm
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- Re-symmetricise A Puzzle?
by civiliza » Thu Jul 07, 2011 6:43 pm
- 2 Replies
- 1142 Views
- Last post by civiliza
Wed Jul 20, 2011 7:14 pm
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- How adding another clue can make a puzzle harder?
by JeJ » Fri Mar 11, 2011 7:54 pm
- 8 Replies
- 1450 Views
- Last post by RW
Sun May 22, 2011 2:26 pm
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- The "right" approach to solve a puzzle
by JeJ » Tue Mar 01, 2011 9:54 pm
- 4 Replies
- 1398 Views
- Last post by kifotv
Sun May 22, 2011 7:03 am
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- Valid puzzles for Fractal Pattern
by Serg » Sat Apr 02, 2011 12:10 pm
- 16 Replies
- 2813 Views
- Last post by dobrichev
Thu Apr 28, 2011 4:12 pm
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- Rambling
by daj95376 » Fri Jul 18, 2008 4:04 pm
- 53 Replies
- 10282 Views
- Last post by ronk
Sat Mar 19, 2011 6:05 pm
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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
- 1235 Views
- Last post by Pat
Sun Feb 13, 2011 12:45 pm
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- Finding unavoidable sets
by RW » Fri Feb 11, 2011 8:54 am
- 2 Replies
- 1971 Views
- Last post by RW
Fri Feb 11, 2011 10:17 am
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