Advanced solving techniques
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- Notation xy-wing
by ArkieTech » Tue Aug 04, 2015 9:15 pm - 1 Replies
- 1776 Views
- Last post by David P Bird
Wed Aug 05, 2015 10:18 am
- Notation xy-wing
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- Exocet 2014_09 Discussion #3
by daj95376 » Sat Sep 20, 2014 7:31 pm - 6 Replies
- 3154 Views
- Last post by JC Van Hay
Thu Jul 23, 2015 7:19 am
- Exocet 2014_09 Discussion #3
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- Solve with two middle adjacent empty sub-regions?
by NotionCommotion » Thu Jul 23, 2015 5:46 am - 0 Replies
- 1556 Views
- Last post by NotionCommotion
Thu Jul 23, 2015 5:46 am
- Solve with two middle adjacent empty sub-regions?
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- a horse by any other name would surely fly as high
by Pat » Mon Jun 22, 2015 11:37 am - 2 Replies
- 1784 Views
- Last post by Mathimagics
Tue Jun 23, 2015 9:14 am
- a horse by any other name would surely fly as high
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- JExocet Pattern Definition
1 ... 22, 23, 24by David P Bird » Tue May 07, 2013 8:44 am - 347 Replies
- 50199 Views
- Last post by Leren
Wed Jun 10, 2015 6:01 am
- JExocet Pattern Definition
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- Notes on CW (Conjugate Worlds)
by gurth » Wed Feb 25, 2015 12:10 pm - 7 Replies
- 2078 Views
- Last post by gurth
Wed Mar 11, 2015 12:04 pm
- Notes on CW (Conjugate Worlds)
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- Article - Advanced Method for Solving Sudoku
by speedy » Tue Feb 17, 2015 3:06 pm - 3 Replies
- 2484 Views
- Last post by speedy
Wed Feb 18, 2015 4:25 pm
- Article - Advanced Method for Solving Sudoku
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- L2 - Wings: examples and exemplar {2 digit - 3 strong links}
by StrmCkr » Sat Dec 27, 2014 12:38 am - 2 Replies
- 4840 Views
- Last post by denis_berthier
Mon Dec 29, 2014 6:02 am
- L2 - Wings: examples and exemplar {2 digit - 3 strong links}
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- Exocet 2014_09 Discussion #1
by daj95376 » Fri Sep 12, 2014 2:49 am - 14 Replies
- 2253 Views
- Last post by JC Van Hay
Thu Sep 18, 2014 7:57 pm
- Exocet 2014_09 Discussion #1
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- Exocet 2014_09 Discussion #2
by daj95376 » Wed Sep 17, 2014 4:28 am - 1 Replies
- 1792 Views
- Last post by champagne
Wed Sep 17, 2014 5:46 pm
- Exocet 2014_09 Discussion #2
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- I would like to post a problem with X and XY cycle
by Chano » Tue Sep 16, 2014 5:56 pm - 0 Replies
- 1592 Views
- Last post by Chano
Tue Sep 16, 2014 5:56 pm
- I would like to post a problem with X and XY cycle
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- Exocet, JExocet, qExocet
by GouinJP » Wed Aug 13, 2014 10:46 am - 1 Replies
- 1997 Views
- Last post by champagne
Wed Aug 13, 2014 6:28 pm
- Exocet, JExocet, qExocet
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- A specific application of Whips
by RichardGoodrich » Thu Nov 07, 2013 2:54 am - 10 Replies
- 2870 Views
- Last post by denis_berthier
Fri Mar 28, 2014 9:12 am
- A specific application of Whips
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- New method to solve Sudoku
1, 2by harshgoel2k » Thu Oct 28, 2010 2:51 pm - 21 Replies
- 20793 Views
- Last post by eleven
Mon Mar 03, 2014 9:20 pm
- New method to solve Sudoku
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- A Short Fish Story (amended)
by Sudtyro2 » Thu Jan 09, 2014 10:08 pm - 9 Replies
- 2228 Views
- Last post by Sudtyro2
Wed Jan 15, 2014 12:45 pm
- A Short Fish Story (amended)
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- Xsudo logic: A how to guide
by sultan vinegar » Wed Sep 04, 2013 12:19 pm - 11 Replies
- 3567 Views
- Last post by sultan vinegar
Thu Jan 02, 2014 2:28 am
- Xsudo logic: A how to guide
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- Help with a proof?
1, 2by Sudtyro2 » Tue Nov 26, 2013 9:40 pm - 16 Replies
- 4002 Views
- Last post by JC Van Hay
Sat Dec 07, 2013 2:05 pm
- Help with a proof?
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- Denis Berhtier Whip 4dot1 in BigSudoku Python Code
by RichardGoodrich » Mon Nov 11, 2013 2:29 am - 1 Replies
- 1866 Views
- Last post by RichardGoodrich
Mon Nov 11, 2013 4:13 pm
- Denis Berhtier Whip 4dot1 in BigSudoku Python Code
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- Understanding Denis Berthier Whips
by RichardGoodrich » Mon Nov 11, 2013 1:55 am - 2 Replies
- 2998 Views
- Last post by RichardGoodrich
Mon Nov 11, 2013 3:39 am
- Understanding Denis Berthier Whips
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- Chain Notation in my Trace
by RichardGoodrich » Sun Nov 10, 2013 4:11 am - 5 Replies
- 2198 Views
- Last post by RichardGoodrich
Sun Nov 10, 2013 11:54 pm
- Chain Notation in my Trace
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- ALS notation
by Marty R. » Fri Oct 18, 2013 7:57 pm - 4 Replies
- 2000 Views
- Last post by daj95376
Sun Oct 20, 2013 4:17 pm
- ALS notation
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- a new (?) view of fish (naked or hidden)
1 ... 4, 5, 6by arcilla » Fri Nov 03, 2006 6:55 pm - 85 Replies
- 39031 Views
- Last post by David P Bird
Sat Sep 21, 2013 11:31 pm
- a new (?) view of fish (naked or hidden)
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- The NoFish List
1, 2, 3by David P Bird » Thu Aug 22, 2013 9:46 pm - 31 Replies
- 7359 Views
- Last post by David P Bird
Thu Sep 12, 2013 2:19 pm
- The NoFish List
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- Would you call this pattern an exocet?
by sultan vinegar » Thu Aug 29, 2013 1:07 am - 6 Replies
- 1974 Views
- Last post by sultan vinegar
Fri Aug 30, 2013 10:36 am
- Would you call this pattern an exocet?
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- Fish Bones
by David P Bird » Mon Aug 19, 2013 11:11 am - 0 Replies
- 2911 Views
- Last post by David P Bird
Mon Aug 19, 2013 11:11 am
- Fish Bones
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- Rating rules / Puzzles. Ordering the rules
1 ... 8, 9, 10by denis_berthier » Sun Mar 30, 2008 10:01 am - 148 Replies
- 44844 Views
- Last post by denis_berthier
Mon Aug 12, 2013 4:40 pm
- Rating rules / Puzzles. Ordering the rules
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- About the arithmetic of Ultimate Fish
1, 2by Obi-Wahn » Thu Feb 01, 2007 9:52 pm - 29 Replies
- 13868 Views
- Last post by blue
Wed Aug 07, 2013 10:24 am
- About the arithmetic of Ultimate Fish
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- Finned X-Wing With Empty Rectangle
by civiliza » Fri Aug 02, 2013 10:00 am - 4 Replies
- 2197 Views
- Last post by civiliza
Mon Aug 05, 2013 12:17 pm
- Finned X-Wing With Empty Rectangle
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- Sudoku on paper without pencilmarks
1, 2, 3by Shazbot » Fri Dec 02, 2005 6:36 am - 42 Replies
- 21548 Views
- Last post by Smythe Dakota
Sun Aug 04, 2013 4:50 pm
- Sudoku on paper without pencilmarks
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- Using Multi-Sector Locked Sets
1, 2, 3by David P Bird » Thu Jun 27, 2013 10:13 pm - 40 Replies
- 10988 Views
- Last post by champagne
Wed Jul 31, 2013 3:26 pm
- Using Multi-Sector Locked Sets
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- The Sudoku grey zone
1, 2, 3by denis_berthier » Mon May 13, 2013 10:05 am - 30 Replies
- 17260 Views
- Last post by denis_berthier
Fri Jul 26, 2013 7:33 am
- The Sudoku grey zone
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- exotic patterns below the potential hardest
1, 2by champagne » Sat Jun 22, 2013 5:44 am - 26 Replies
- 4488 Views
- Last post by champagne
Mon Jul 15, 2013 7:57 am
- exotic patterns below the potential hardest
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- Will an XY Chain Always Produce A Turbot?
by civiliza » Thu Jul 11, 2013 1:45 pm - 5 Replies
- 1919 Views
- Last post by daj95376
Fri Jul 12, 2013 5:12 pm
- Will an XY Chain Always Produce A Turbot?
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- An Almost APE?
by Sudtyro2 » Fri Jun 07, 2013 3:09 pm - 3 Replies
- 1840 Views
- Last post by eleven
Sun Jun 09, 2013 10:32 am
- An Almost APE?
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- Pattern-based classification of (hard) puzzles
1 ... 5, 6, 7by denis_berthier » Tue Mar 20, 2012 10:03 am - 96 Replies
- 26922 Views
- Last post by denis_berthier
Sun Jun 02, 2013 4:06 am
- Pattern-based classification of (hard) puzzles
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- Non-standard pencil marks
by dokusan » Thu Jan 03, 2013 1:08 am
- 8 Replies
- 3536 Views
- Last post by RichardGoodrich
Fri May 03, 2013 3:46 am
- Non-standard pencil marks
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- x-cycle, y-cycle & 3D-Medusa
1, 2, 3by Jeff » Tue Dec 13, 2005 2:32 pm - 33 Replies
- 14438 Views
- Last post by RichardGoodrich
Wed May 01, 2013 3:49 am
- x-cycle, y-cycle & 3D-Medusa
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- New Elimination for 3D Medusa(?) with an ALS
1, 2by mturner » Fri Mar 15, 2013 4:26 am - 20 Replies
- 5841 Views
- Last post by daj95376
Mon Mar 18, 2013 6:39 am
- New Elimination for 3D Medusa(?) with an ALS
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- Sint Probability
by weng » Fri Feb 22, 2013 6:09 pm - 3 Replies
- 2107 Views
- Last post by weng
Fri Mar 01, 2013 7:22 pm
- Sint Probability
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