Advanced solving techniques
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- Sudoku on paper without pencilmarks
1, 2, 3by Shazbot » Fri Dec 02, 2005 6:36 am - 42 Replies
- 16285 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
- 2343 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
- 9509 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
- 1429 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
- 691 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
- 699 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
- 8420 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
- 1064 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
- 10102 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
- 2820 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
- 889 Views
- Last post by weng
Fri Mar 01, 2013 7:22 pm
- Sint Probability
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- Question about Forcing Chains
by ArkieTech » Sat Jan 26, 2013 4:59 pm - 8 Replies
- 642 Views
- Last post by daj95376
Sun Jan 27, 2013 1:08 am
- Question about Forcing Chains
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- Some thoughts on Eureka notation
by ArkieTech » Sat Jan 05, 2013 4:15 pm - 9 Replies
- 1015 Views
- Last post by ArkieTech
Mon Jan 07, 2013 1:09 pm
- Some thoughts on Eureka notation
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- g-whips and g-braids
1, 2by denis_berthier » Sun Mar 27, 2011 10:35 am - 21 Replies
- 2288 Views
- Last post by denis_berthier
Mon Oct 08, 2012 10:19 am
- g-whips and g-braids
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- more on whips, braids, T&E...
1, 2, 3by denis_berthier » Sun Mar 27, 2011 6:53 am - 37 Replies
- 5736 Views
- Last post by Mauricio
Fri Sep 07, 2012 12:07 am
- more on whips, braids, T&E...
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- Sharks - a Truth Balancing Method
1, 2, 3, 4by David P Bird » Sun Apr 01, 2012 11:37 am - 56 Replies
- 3472 Views
- Last post by David P Bird
Fri Jul 27, 2012 10:29 am
- Sharks - a Truth Balancing Method
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- Templates with UAs (UnAvoidable Sets)
by ronk » Tue Jul 10, 2012 6:45 pm - 12 Replies
- 783 Views
- Last post by daj95376
Fri Jul 13, 2012 3:27 pm
- Templates with UAs (UnAvoidable Sets)
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- Reverse BUG-lite
1, 2by RW » Mon Oct 16, 2006 11:15 am - 15 Replies
- 6891 Views
- Last post by RW
Mon Jun 11, 2012 8:19 pm
- Reverse BUG-lite
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- Small patterns
by Red Ed » Sun May 20, 2012 11:27 am - 9 Replies
- 768 Views
- Last post by Red Ed
Mon May 21, 2012 6:48 pm
- Small patterns
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- The famility of Chain Strategies/Techniques
by dino_hsu_1019 » Thu May 03, 2012 3:36 am - 2 Replies
- 1790 Views
- Last post by hobiwan
Sat May 05, 2012 12:18 pm
- The famility of Chain Strategies/Techniques
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- 0-rank logic sets in the hardest puzzles
1, 2by ronk » Tue Apr 03, 2012 1:56 pm - 21 Replies
- 1829 Views
- Last post by David P Bird
Fri May 04, 2012 11:00 pm
- 0-rank logic sets in the hardest puzzles
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- What is this technique called?
by ShadowVegan » Fri Apr 13, 2012 7:03 am
- 1 Replies
- 612 Views
- Last post by JasonLion
Fri Apr 13, 2012 12:59 pm
- What is this technique called?
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- Forming MUGs from BUG-Lite composites
1, 2, 3, 4, 5by Myth Jellies » Tue Feb 14, 2006 12:15 pm - 64 Replies
- 16790 Views
- Last post by Luke
Sat Mar 17, 2012 4:47 pm
- Forming MUGs from BUG-Lite composites
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- Sashimi X-Wing
by cwbybri » Sat Oct 08, 2011 1:43 am - 2 Replies
- 2968 Views
- Last post by StrmCkr
Fri Nov 11, 2011 11:52 am
- Sashimi X-Wing
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- Solving using units/jouses
by pjb » Tue Oct 18, 2011 4:52 am - 0 Replies
- 695 Views
- Last post by pjb
Tue Oct 18, 2011 4:52 am
- Solving using units/jouses
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- A new logic-based method for cracking any puzzle
by pjb » Fri Sep 23, 2011 12:33 am - 7 Replies
- 1538 Views
- Last post by tarek
Sun Sep 25, 2011 5:58 am
- A new logic-based method for cracking any puzzle
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- Multi-Value Chain Operands
by daj95376 » Wed Aug 31, 2011 6:18 am - 10 Replies
- 963 Views
- Last post by daj95376
Wed Sep 21, 2011 10:11 pm
- Multi-Value Chain Operands
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- Techniques classification
by dobrichev » Sat Aug 20, 2011 11:32 am - 10 Replies
- 1019 Views
- Last post by dobrichev
Thu Aug 25, 2011 8:33 am
- Techniques classification
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- Nice loops for advanced level players - b/b plot
1, 2, 3, 4by Jeff » Sat Nov 05, 2005 8:27 pm - 58 Replies
- 56577 Views
- Last post by excel_otaku
Sat Jul 30, 2011 4:37 am
- Nice loops for advanced level players - b/b plot
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- X-Colouring Question
by BryanL » Thu May 26, 2011 9:09 am - 12 Replies
- 815 Views
- Last post by BryanL
Fri May 27, 2011 2:00 am
- X-Colouring Question
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- On the UR+3U/2SL
by surbier » Fri May 13, 2011 1:34 pm - 7 Replies
- 637 Views
- Last post by surbier
Sun May 15, 2011 5:06 pm
- On the UR+3U/2SL
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- Strong inferences induced by the UR
1, 2by storm_norm » Sat Apr 04, 2009 11:07 am - 27 Replies
- 2696 Views
- Last post by JasonLion
Mon Mar 28, 2011 6:20 pm
- Strong inferences induced by the UR
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- Abominable TRIAL-and-ERROR and lovely BRAIDS
1 ... 6, 7, 8by denis_berthier » Tue Oct 14, 2008 10:32 pm - 110 Replies
- 15581 Views
- Last post by JasonLion
Sat Mar 26, 2011 12:50 pm
- Abominable TRIAL-and-ERROR and lovely BRAIDS
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