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- A special solution grid
1, 2by udosuk » Fri Mar 02, 2007 2:37 am - 15 Replies
- 8040 Views
- Last post by udosuk
Thu Mar 08, 2007 2:13 pm
- A special solution grid
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- Is “11†the ultimate minimum-digits for logic-Sudoku puzzle?
by Drjsguo » Sat Mar 03, 2007 4:59 pm - 5 Replies
- 4386 Views
- Last post by Drjsguo
Sun Mar 04, 2007 3:23 pm
- Is “11†the ultimate minimum-digits for logic-Sudoku puzzle?
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- How hard is this puzzle?
1, 2by 999_Springs » Fri Feb 09, 2007 9:52 pm - 24 Replies
- 12821 Views
- Last post by ronk
Sat Mar 03, 2007 1:13 pm
- How hard is this puzzle?
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- Puzzle Ratings
by Chessmaster » Fri Mar 02, 2007 6:47 am - 1 Replies
- 2227 Views
- Last post by wapati
Fri Mar 02, 2007 7:14 am
- Puzzle Ratings
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- 15 x Pointing -- breaking record
by Eioru » Thu Feb 22, 2007 8:22 am - 2 Replies
- 2503 Views
- Last post by Pat
Tue Feb 27, 2007 1:18 pm
- 15 x Pointing -- breaking record
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- Hearts (for gentlemen only)
by m_b_metcalf » Thu Feb 01, 2007 1:43 am - 12 Replies
- 6925 Views
- Last post by Pat
Mon Feb 26, 2007 2:19 pm
- Hearts (for gentlemen only)
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- Fast 3x3-counting
by kjellfp » Wed Jan 25, 2006 9:43 pm - 10 Replies
- 12198 Views
- Last post by kjellfp
Fri Feb 23, 2007 9:54 pm
- Fast 3x3-counting
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- RxC Sudoku band counting algorithm
1, 2by kjellfp » Mon Jan 09, 2006 10:49 pm - 24 Replies
- 40387 Views
- Last post by kjellfp
Fri Feb 23, 2007 9:46 pm
- RxC Sudoku band counting algorithm
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- a Solution to m_b_metcalf's 11.4 puzzle (my variation)
by StrmCkr » Mon Feb 19, 2007 9:17 pm - 10 Replies
- 6147 Views
- Last post by RW
Tue Feb 20, 2007 11:39 am
- a Solution to m_b_metcalf's 11.4 puzzle (my variation)
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- How to represent a sudoku with deleted candidates as string?
1, 2by Stephan Heuscher » Sat Feb 10, 2007 1:54 pm - 29 Replies
- 18145 Views
- Last post by Smythe Dakota
Tue Feb 20, 2007 8:43 am
- How to represent a sudoku with deleted candidates as string?
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- Solution to Vidar's Monster #4
by 999_Springs » Mon Feb 12, 2007 1:23 pm - 3 Replies
- 2787 Views
- Last post by re'born
Thu Feb 15, 2007 11:27 pm
- Solution to Vidar's Monster #4
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- Help identifying Hidden Triples/Doubles
by flet » Wed Feb 14, 2007 3:09 am - 2 Replies
- 2165 Views
- Last post by udosuk
Wed Feb 14, 2007 6:01 am
- Help identifying Hidden Triples/Doubles
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- How Hard should this puzzle have been
by Chessmaster » Fri Feb 09, 2007 10:45 pm - 4 Replies
- 2318 Views
- Last post by wapati
Wed Feb 14, 2007 12:56 am
- How Hard should this puzzle have been
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- Human composed Sudoku vs Machine made
1, 2, 3by chuckfresno » Sun Jun 12, 2005 9:58 pm - 38 Replies
- 34199 Views
- Last post by Pat
Thu Feb 08, 2007 1:09 pm
- Human composed Sudoku vs Machine made
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- Cascade of Eliminations for a Single Digit
by daj95376 » Thu Jan 25, 2007 4:37 am - 3 Replies
- 3086 Views
- Last post by daj95376
Thu Jan 25, 2007 5:30 pm
- Cascade of Eliminations for a Single Digit
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- Multiply Solution
by Papy » Mon Jan 22, 2007 12:01 pm - 1 Replies
- 2017 Views
- Last post by Papy
Thu Jan 25, 2007 10:30 am
- Multiply Solution
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- To solve hardest Sudoku
1, 2by Papy » Sun Jan 21, 2007 11:08 am - 19 Replies
- 7478 Views
- Last post by Papy
Thu Jan 25, 2007 8:34 am
- To solve hardest Sudoku
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- Struggle on Medium level on the sudoku
by Monaila » Mon Jan 22, 2007 4:03 am - 0 Replies
- 1693 Views
- Last post by Monaila
Mon Jan 22, 2007 4:03 am
- Struggle on Medium level on the sudoku
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- Are digits importants?
by Papy » Sat Jan 20, 2007 8:15 pm - 3 Replies
- 2434 Views
- Last post by Red Ed
Sun Jan 21, 2007 10:24 am
- Are digits importants?
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- Help to generate the initial grid of sudoku
by gianky_2007 » Thu Jan 18, 2007 9:32 pm - 3 Replies
- 2819 Views
- Last post by RW
Fri Jan 19, 2007 10:14 am
- Help to generate the initial grid of sudoku
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- Finned Swordfish Plus Quasi-Empty Rectangle Pattern
by daj95376 » Sat Jan 13, 2007 8:19 pm - 3 Replies
- 2976 Views
- Last post by wapati
Mon Jan 15, 2007 8:29 pm
- Finned Swordfish Plus Quasi-Empty Rectangle Pattern
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- Getting your head around the xz ALS rule
by tonyjer » Mon Jan 08, 2007 8:30 pm - 2 Replies
- 3873 Views
- Last post by tonyjer
Tue Jan 09, 2007 8:28 pm
- Getting your head around the xz ALS rule
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- Where to publish a Sudoku research paper?
by Drjsguo » Sun Oct 29, 2006 2:49 pm - 3 Replies
- 5734 Views
- Last post by richardm
Tue Jan 02, 2007 12:53 pm
- Where to publish a Sudoku research paper?
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- Sudoku on MySpace
by Pi » Mon Jan 01, 2007 7:12 pm - 0 Replies
- 3005 Views
- Last post by Pi
Mon Jan 01, 2007 7:12 pm
- Sudoku on MySpace
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- Overlapping Empty Rectangles ???
by daj95376 » Wed Dec 27, 2006 1:32 am - 3 Replies
- 4204 Views
- Last post by wapati
Wed Dec 27, 2006 10:20 pm
- Overlapping Empty Rectangles ???
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- Complex Single-Digit Double Implication Chains/Nets
by daj95376 » Tue Dec 19, 2006 1:48 pm - 0 Replies
- 2874 Views
- Last post by daj95376
Tue Dec 19, 2006 1:48 pm
- Complex Single-Digit Double Implication Chains/Nets
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- Sashimi Swordfish ???
by daj95376 » Tue Dec 12, 2006 5:27 am - 13 Replies
- 6850 Views
- Last post by ronk
Sun Dec 17, 2006 2:04 pm
- Sashimi Swordfish ???
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- Record XY-Wing ???
by daj95376 » Thu Dec 14, 2006 10:42 pm - 1 Replies
- 1903 Views
- Last post by udosuk
Fri Dec 15, 2006 6:42 am
- Record XY-Wing ???
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- Multi solutions
by Papy » Sat Dec 09, 2006 5:12 pm - 0 Replies
- 2289 Views
- Last post by Papy
Sat Dec 09, 2006 5:12 pm
- Multi solutions
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- XY-Chain Shorthand
by daj95376 » Wed Dec 06, 2006 12:35 pm - 3 Replies
- 6149 Views
- Last post by daj95376
Wed Dec 06, 2006 6:52 pm
- XY-Chain Shorthand
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- On specific grids and difficulty of their puzzles
by Mauricio » Wed Dec 06, 2006 2:45 am - 1 Replies
- 4917 Views
- Last post by RW
Wed Dec 06, 2006 10:25 am
- On specific grids and difficulty of their puzzles
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- Help with 17-clue puzzles
by m_b_metcalf » Wed Dec 06, 2006 12:20 am - 2 Replies
- 2424 Views
- Last post by m_b_metcalf
Wed Dec 06, 2006 2:33 am
- Help with 17-clue puzzles
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- Gemstone from M_B_Metcalf
by daj95376 » Tue Dec 05, 2006 9:39 pm - 0 Replies
- 1876 Views
- Last post by daj95376
Tue Dec 05, 2006 9:39 pm
- Gemstone from M_B_Metcalf
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- Technique Name Please
by daj95376 » Mon Dec 04, 2006 7:27 pm - 7 Replies
- 3097 Views
- Last post by wapati
Tue Dec 05, 2006 5:49 am
- Technique Name Please
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