Advanced methods and approaches for solving Sudoku puzzles
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- Almost Locked Sets xz-rule (doubly-linked)
by ronk » Sat Apr 29, 2006 9:41 pm
- 132 Replies
- 29615 Views
- Last post by aran
Thu Apr 26, 2012 4:36 pm
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- What is this technique called?
by ShadowVegan » Fri Apr 13, 2012 7:03 am
- 1 Replies
- 1491 Views
- Last post by JasonLion
Fri Apr 13, 2012 12:59 pm
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- Forming MUGs from BUG-Lite composites
by Myth Jellies » Tue Feb 14, 2006 12:15 pm
- 64 Replies
- 24394 Views
- Last post by Luke
Sat Mar 17, 2012 4:47 pm
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- Strong Links for Beginners
by Havard » Mon Feb 27, 2006 11:56 am
- 31 Replies
- 34587 Views
- Last post by sysudoku
Tue Mar 13, 2012 7:39 pm
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- UR+2B/2SL
by surbier » Thu Feb 24, 2011 7:35 am
- 89 Replies
- 10616 Views
- Last post by surbier
Mon Jan 16, 2012 8:34 pm
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- Sashimi X-Wing
by cwbybri » Sat Oct 08, 2011 1:43 am
- 2 Replies
- 4327 Views
- Last post by StrmCkr
Fri Nov 11, 2011 11:52 am
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- Solving using units/jouses
by pjb » Tue Oct 18, 2011 4:52 am
- 0 Replies
- 1542 Views
- Last post by pjb
Tue Oct 18, 2011 4:52 am
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- A new logic-based method for cracking any puzzle
by pjb » Fri Sep 23, 2011 12:33 am
- 7 Replies
- 3087 Views
- Last post by tarek
Sun Sep 25, 2011 5:58 am
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- Multi-Value Chain Operands
by daj95376 » Wed Aug 31, 2011 6:18 am
- 10 Replies
- 2041 Views
- Last post by daj95376
Wed Sep 21, 2011 10:11 pm
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- Techniques classification
by dobrichev » Sat Aug 20, 2011 11:32 am
- 10 Replies
- 2236 Views
- Last post by dobrichev
Thu Aug 25, 2011 8:33 am
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- Nice loops for advanced level players - b/b plot
by Jeff » Sat Nov 05, 2005 8:27 pm
- 58 Replies
- 64421 Views
- Last post by excel_otaku
Sat Jul 30, 2011 4:37 am
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- The BUG (Bivalue Universal Grave) principle
by Jeff » Mon Nov 28, 2005 9:52 am
- 164 Replies
- 145221 Views
- Last post by ronk
Wed Jun 15, 2011 3:11 pm
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- X-Colouring Question
by BryanL » Thu May 26, 2011 9:09 am
- 12 Replies
- 1830 Views
- Last post by BryanL
Fri May 27, 2011 2:00 am
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- On the UR+3U/2SL
by surbier » Fri May 13, 2011 1:34 pm
- 7 Replies
- 1586 Views
- Last post by surbier
Sun May 15, 2011 5:06 pm
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- Type 3 Unique Rectangles - Hidden Subsets?
by keith » Fri May 12, 2006 10:17 pm
- 53 Replies
- 39534 Views
- Last post by ronk
Mon Apr 11, 2011 12:48 am
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- Strong inferences induced by the UR
by storm_norm » Sat Apr 04, 2009 11:07 am
- 27 Replies
- 4782 Views
- Last post by JasonLion
Mon Mar 28, 2011 6:20 pm
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- Group extensions for nrczt chains
by PIsaacson » Thu Sep 04, 2008 6:26 pm
- 48 Replies
- 6773 Views
- Last post by JasonLion
Mon Mar 28, 2011 6:14 pm
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- The concept of a RESOLUTION RULE and its applications
by denis_berthier » Sat Aug 18, 2007 6:57 am
- 329 Replies
- 84144 Views
- Last post by JasonLion
Sat Mar 26, 2011 12:36 pm
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- Alternating Inference Chains
by Myth Jellies » Sat Apr 15, 2006 6:23 am
- 40 Replies
- 56225 Views
- Last post by JasonLion
Wed Mar 23, 2011 6:59 pm
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- SwordFish Question
by kenr77 » Sat Mar 19, 2011 10:26 pm
- 1 Replies
- 1314 Views
- Last post by JasonLion
Sun Mar 20, 2011 2:07 am
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- What technique is this?
by thomas129 » Mon Feb 07, 2011 6:46 pm
- 2 Replies
- 1392 Views
- Last post by RW
Tue Feb 08, 2011 10:51 am
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- BUG + 1 Not working
by JeJ » Tue Jan 18, 2011 3:22 am
- 7 Replies
- 1799 Views
- Last post by Pat
Mon Jan 24, 2011 1:00 pm
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- what's this solving technique
by docjohn » Fri Jan 07, 2011 7:25 pm
- 5 Replies
- 1372 Views
- Last post by docjohn
Tue Jan 11, 2011 4:53 am
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- Why won't this BUG- Lite work?
by thomas129 » Sun Jan 09, 2011 8:27 pm
- 1 Replies
- 1321 Views
- Last post by daj95376
Sun Jan 09, 2011 8:44 pm
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- Is this a BUG-Lite ?
by ronk » Mon Dec 20, 2010 11:22 pm
- 2 Replies
- 1525 Views
- Last post by RW
Tue Dec 21, 2010 8:42 am
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- Expanded Uniqueness Type?
by EnderGT » Mon Nov 29, 2010 5:45 pm
- 2 Replies
- 1448 Views
- Last post by EnderGT
Mon Nov 29, 2010 6:57 pm
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- Solving Hardest Puzzles
by champagne » Wed Jul 28, 2010 9:41 am
- 10 Replies
- 2243 Views
- Last post by StrmCkr
Fri Nov 05, 2010 5:18 pm
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- Uniqueness Type 6 - UR meets X-Wing
by Ruud » Fri Mar 31, 2006 2:06 pm
- 122 Replies
- 93753 Views
- Last post by StrmCkr
Thu Oct 21, 2010 12:40 am
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- Hidden rectangles: old hat revisited
by StrmCkr » Tue Oct 19, 2010 10:07 am
- 2 Replies
- 1512 Views
- Last post by StrmCkr
Wed Oct 20, 2010 5:45 am
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- Solution to Ocean's #4/gold
by gurth » Fri Nov 17, 2006 9:13 am
- 14 Replies
- 5240 Views
- Last post by gurth
Sun Sep 12, 2010 3:17 pm
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- Quantums
by Luke » Fri Aug 20, 2010 4:18 pm
- 31 Replies
- 5187 Views
- Last post by JasonLion-Admin
Sun Sep 05, 2010 3:59 pm
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- ALS-xz with set overlap
by ronk » Sun Sep 05, 2010 2:37 pm
- 29 Replies
- 3412 Views
- Last post by JasonLion-Admin
Sun Sep 05, 2010 3:56 pm
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- Advanced ALS Chains -A Tutorial ASI#3b
by DonM » Sun Sep 05, 2010 3:10 pm
- 15 Replies
- 5381 Views
- Last post by JasonLion-Admin
Sun Sep 05, 2010 3:54 pm
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- An alternative way to solve the hard 17 clue
by eleven » Mon May 24, 2010 11:25 pm
- 19 Replies
- 3943 Views
- Last post by SteveK
Sat Jul 31, 2010 8:18 am
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- A question on 3D medusa coloring elimination rules
by surbier » Thu Jul 01, 2010 5:42 am
- 0 Replies
- 1622 Views
- Last post by surbier
Thu Jul 01, 2010 5:42 am
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- non-ALS vwxyz-wing
by surbier » Wed May 26, 2010 6:20 pm
- 6 Replies
- 2031 Views
- Last post by surbier
Wed Jun 23, 2010 11:40 am
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- Ultimate Lizard Guide
by tarek » Sun May 23, 2010 12:53 am
- 2 Replies
- 1789 Views
- Last post by tarek
Sun May 23, 2010 12:55 am
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- Challenge: New set of 11 'Unsolvables'
by AndrewStuart » Wed Sep 13, 2006 4:50 pm
- 103 Replies
- 65132 Views
- Last post by BrianS
Sun May 17, 2009 10:47 am
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- Bi-directional cycle + Unique Rectangle Typ 2
by claudiarabia » Mon May 04, 2009 8:04 pm
- 16 Replies
- 3282 Views
- Last post by DonM
Tue May 05, 2009 7:27 pm
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- missing deduction for xyt chains
by surbier » Sun May 03, 2009 4:46 pm
- 17 Replies
- 3303 Views
- Last post by DonM
Mon May 04, 2009 10:33 pm
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