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- My Sudoku learning journal
by Instinct » Tue Dec 23, 2014 1:34 pm - 0 Replies
- 636 Views
- Last post by Instinct
Tue Dec 23, 2014 1:34 pm
- My Sudoku learning journal
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- Number of non equivalent patterns having N clues
1, 2by JPF » Sun Apr 22, 2012 11:18 pm - 21 Replies
- 4138 Views
- Last post by coloin
Tue Nov 11, 2014 10:10 pm
- Number of non equivalent patterns having N clues
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- Unique solutions
by Willo » Mon Nov 10, 2014 1:06 am - 2 Replies
- 626 Views
- Last post by eleven
Mon Nov 10, 2014 10:26 am
- Unique solutions
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- Write up?
1, 2by mollwollfumble » Wed Apr 09, 2014 11:00 pm - 15 Replies
- 1571 Views
- Last post by enxio27
Thu Nov 06, 2014 9:24 pm
- Write up?
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- Grading invalid puzzles...
1, 2
by ixsetf » Mon Nov 03, 2014 6:19 pm
- 15 Replies
- 1150 Views
- Last post by ixsetf
Thu Nov 06, 2014 4:40 pm
- Grading invalid puzzles...
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- Minimum number of clues with 3 empty boxes?
by ixsetf » Thu Oct 30, 2014 7:36 pm - 4 Replies
- 798 Views
- Last post by blue
Fri Oct 31, 2014 1:47 am
- Minimum number of clues with 3 empty boxes?
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- Minimal patterns
by Serg » Fri Oct 10, 2014 7:14 am - 14 Replies
- 928 Views
- Last post by Serg
Thu Oct 16, 2014 11:47 am
- Minimal patterns
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- Sudoku Programmers Forum?
by RichardGoodrich » Sun Sep 21, 2014 6:25 pm - 2 Replies
- 870 Views
- Last post by RichardGoodrich
Mon Oct 06, 2014 11:19 pm
- Sudoku Programmers Forum?
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- Sparse Sudoku's
by Dr. Octagon » Wed Oct 01, 2014 7:01 pm - 12 Replies
- 930 Views
- Last post by Dr. Octagon
Sun Oct 05, 2014 7:10 pm
- Sparse Sudoku's
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- <1248> Exocet in a Chute
by daj95376 » Mon Aug 11, 2014 7:22 pm - 3 Replies
- 806 Views
- Last post by daj95376
Fri Aug 22, 2014 11:12 pm
- <1248> Exocet in a Chute
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- Another curious Exocet (breaking all the rules ?)
by blue » Tue Aug 12, 2014 9:05 am - 3 Replies
- 849 Views
- Last post by blue
Tue Aug 12, 2014 10:40 am
- Another curious Exocet (breaking all the rules ?)
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- <2346> Exocet in a Chute
by daj95376 » Sat Aug 09, 2014 9:22 pm - 10 Replies
- 784 Views
- Last post by daj95376
Sun Aug 10, 2014 11:38 pm
- <2346> Exocet in a Chute
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- Help to find puzzle
by m_b_metcalf » Wed Jul 02, 2014 1:49 pm - 6 Replies
- 915 Views
- Last post by m_b_metcalf
Fri Jul 04, 2014 7:15 am
- Help to find puzzle
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- Minimum steps to a trivial puzzle?
by ixsetf » Fri May 16, 2014 8:49 pm
- 12 Replies
- 951 Views
- Last post by Pat
Tue May 20, 2014 6:36 am
- Minimum steps to a trivial puzzle?
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- Is an ALS XY-wing considered a chain?
by ArkieTech » Wed Apr 16, 2014 4:00 pm - 3 Replies
- 882 Views
- Last post by daj95376
Wed Apr 16, 2014 10:04 pm
- Is an ALS XY-wing considered a chain?
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- Easiest puzzles
by dobrichev » Sun Feb 09, 2014 12:31 pm - 7 Replies
- 896 Views
- Last post by Pat
Tue Feb 18, 2014 12:10 pm
- Easiest puzzles
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- Sudoku Anchor-5, etc.
by RichardGoodrich » Fri Jan 17, 2014 3:45 am - 0 Replies
- 875 Views
- Last post by RichardGoodrich
Fri Jan 17, 2014 3:45 am
- Sudoku Anchor-5, etc.
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- Where is or was the Eureka Forum
by RichardGoodrich » Thu Nov 07, 2013 3:58 am - 3 Replies
- 1013 Views
- Last post by fdutra
Sun Nov 24, 2013 2:01 pm
- Where is or was the Eureka Forum
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- Sudoku People
by RichardGoodrich » Fri Dec 21, 2012 11:55 pm - 3 Replies
- 1316 Views
- Last post by RichardGoodrich
Thu Nov 07, 2013 3:46 am
- Sudoku People
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- Helmut's Sudoku Formatter
by keith » Mon Nov 04, 2013 1:54 am - 1 Replies
- 820 Views
- Last post by GouinJP
Mon Nov 04, 2013 7:48 am
- Helmut's Sudoku Formatter
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- Bored with no pencil marks
by Turtle » Sun Oct 27, 2013 1:51 pm - 6 Replies
- 957 Views
- Last post by JasonLion
Tue Oct 29, 2013 6:32 pm
- Bored with no pencil marks
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- Sudoku Aid or Cheating?
by mooker » Wed Apr 11, 2007 4:11 pm - 14 Replies
- 6643 Views
- Last post by David P Bird
Sun Oct 13, 2013 10:15 pm
- Sudoku Aid or Cheating?
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- Looking for puzzles for my Sudoku app
by ohho » Wed Oct 02, 2013 6:55 am - 9 Replies
- 1018 Views
- Last post by ohho
Mon Oct 07, 2013 1:39 am
- Looking for puzzles for my Sudoku app
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- Puzzles needing lots of locked candidates
1, 2, 3, 4, 5by 999_Springs » Sun Apr 15, 2007 3:17 pm - 61 Replies
- 25165 Views
- Last post by Pat
Thu Oct 03, 2013 1:00 pm
- Puzzles needing lots of locked candidates
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- ALS Algorithm Needed
by Sudtyro2 » Tue Sep 10, 2013 8:01 pm - 4 Replies
- 934 Views
- Last post by Sudtyro2
Wed Sep 11, 2013 6:36 pm
- ALS Algorithm Needed
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- what is Back link?
by tomdean » Tue Sep 03, 2013 7:50 am - 1 Replies
- 719 Views
- Last post by David P Bird
Thu Sep 05, 2013 8:51 am
- what is Back link?
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- Daily Sudoku Forum is down
by keith » Sat Oct 20, 2012 10:07 pm - 14 Replies
- 1706 Views
- Last post by hughwill
Fri Aug 23, 2013 9:05 am
- Daily Sudoku Forum is down
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- Stripping Out Redundant Clues
1, 2, 3by David P Bird » Thu Jan 03, 2013 8:03 pm - 32 Replies
- 2237 Views
- Last post by StrmCkr
Fri Aug 02, 2013 4:48 pm
- Stripping Out Redundant Clues
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- The real distribution of minimal puzzles
1, 2, 3, 4, 5 by denis_berthier » Tue Nov 30, 2010 3:45 pm
- 63 Replies
- 4307 Views
- Last post by denis_berthier
Thu Aug 01, 2013 7:40 am
- The real distribution of minimal puzzles
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- AICs with 9 links - and new original names
by 999_Springs » Wed Jul 24, 2013 9:00 pm - 0 Replies
- 669 Views
- Last post by 999_Springs
Wed Jul 24, 2013 9:00 pm
- AICs with 9 links - and new original names
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- Holes beget holes
1, 2by Red Ed » Thu May 23, 2013 10:17 pm - 18 Replies
- 1325 Views
- Last post by daj95376
Thu May 30, 2013 3:28 pm
- Holes beget holes
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- Universal Elimination Pattern for hard puzzles
1 ... 5, 6, 7by logel » Fri Apr 19, 2013 2:21 pm - 101 Replies
- 5612 Views
- Last post by denis_berthier
Tue May 21, 2013 6:26 am
- Universal Elimination Pattern for hard puzzles
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- How do ARs Arise?
1, 2by David P Bird » Fri Mar 29, 2013 10:02 am - 25 Replies
- 1436 Views
- Last post by denis_berthier
Wed May 08, 2013 3:51 pm
- How do ARs Arise?
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- Sudoku's maths
by Hoetre » Fri Apr 26, 2013 10:24 am - 3 Replies
- 645 Views
- Last post by Hoetre
Sat Apr 27, 2013 1:03 pm
- Sudoku's maths
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- One flew over the backdoors
1, 2, 3, 4, 5by dobrichev » Thu Dec 06, 2012 9:14 pm - 63 Replies
- 2887 Views
- Last post by denis_berthier
Fri Apr 19, 2013 10:21 am
- One flew over the backdoors
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- Four-Row Cover
by holdout » Wed Apr 03, 2013 8:46 pm - 11 Replies
- 801 Views
- Last post by Red Ed
Wed Apr 17, 2013 9:37 pm
- Four-Row Cover
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