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- Am I the only one bothered by this huge prime number
by Maq777 » Sun Apr 04, 2021 12:01 pm - 7 Replies
- 1284 Views
- Last post by JPF
Sat Apr 10, 2021 8:28 pm
- Am I the only one bothered by this huge prime number
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- Errors in Sudopedia
by Maq777 » Wed Mar 31, 2021 10:58 pm - 3 Replies
- 840 Views
- Last post by Maq777
Sun Apr 04, 2021 6:43 pm
- Errors in Sudopedia
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- sudoku is a 6-dimensional problem
by dukuso » Mon Nov 07, 2005 8:28 am
- 8 Replies
- 5568 Views
- Last post by Maq777
Sat Apr 03, 2021 11:48 pm
- sudoku is a 6-dimensional problem
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- Canonicalizing all Sudokus
by Tomoka » Thu Apr 06, 2017 6:16 pm - 5 Replies
- 1895 Views
- Last post by Maq777
Thu Apr 01, 2021 1:00 pm
- Canonicalizing all Sudokus
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- Shidoku Study with Graphs
by Maq777 » Sat Mar 20, 2021 2:48 pm
- 7 Replies
- 1199 Views
- Last post by Maq777
Sun Mar 28, 2021 12:39 pm
- Shidoku Study with Graphs
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- Equations that work for any sudoku of the form n * n
by Maq777 » Mon Mar 22, 2021 9:49 pm - 14 Replies
- 1251 Views
- Last post by Maq777
Wed Mar 24, 2021 1:12 am
- Equations that work for any sudoku of the form n * n
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- sudoku max allowed subsets
1, 2 by urhegyi » Thu Feb 04, 2021 2:56 pm
- 19 Replies
- 2023 Views
- Last post by m_b_metcalf
Tue Mar 16, 2021 2:54 pm
- sudoku max allowed subsets
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- The bivalue conjecture
1, 2by denis_berthier » Sat Feb 20, 2021 6:01 am - 26 Replies
- 2691 Views
- Last post by nazaz
Mon Mar 15, 2021 6:59 pm
- The bivalue conjecture
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- Is there a puzzle with no (3D-)trivalue cell?
by denis_berthier » Sat Jan 09, 2021 5:41 am - 6 Replies
- 1063 Views
- Last post by denis_berthier
Fri Feb 19, 2021 9:46 am
- Is there a puzzle with no (3D-)trivalue cell?
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- start with basics, finish with x-wing, xy-wing and xyz-wing
by urhegyi » Thu Feb 18, 2021 8:51 am - 0 Replies
- 669 Views
- Last post by urhegyi
Thu Feb 18, 2021 8:51 am
- start with basics, finish with x-wing, xy-wing and xyz-wing
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- Automorphic patterns
by coloin » Sun Feb 07, 2021 12:22 am - 4 Replies
- 845 Views
- Last post by coloin
Wed Feb 10, 2021 10:48 pm
- Automorphic patterns
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- Sudokus with a nice form
1, 2 by urhegyi » Thu Dec 10, 2020 10:28 pm
- 19 Replies
- 2105 Views
- Last post by denis_berthier
Thu Feb 04, 2021 10:15 am
- Sudokus with a nice form
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- Matching minirows analysis
by Serg » Thu Jan 21, 2021 11:17 pm - 3 Replies
- 864 Views
- Last post by Serg
Sat Jan 23, 2021 10:38 am
- Matching minirows analysis
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- Output file in standard format for all moves made
1, 2by jco » Fri Jul 17, 2020 1:42 pm - 24 Replies
- 2515 Views
- Last post by jco
Wed Jan 13, 2021 5:00 pm
- Output file in standard format for all moves made
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- New Sudoku website: www.SudokuByZol.com
by zol » Mon Sep 22, 2008 11:28 pm - 1 Replies
- 1890 Views
- Last post by BingoGuy
Wed Dec 16, 2020 5:44 pm
- New Sudoku website: www.SudokuByZol.com
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- Getting in touch with "Red" Ed Russell
by peterchayward » Mon Dec 07, 2020 10:34 pm
- 14 Replies
- 1394 Views
- Last post by SpAce
Wed Dec 16, 2020 12:05 am
- Getting in touch with "Red" Ed Russell
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- Perfectly symmetric patterns
1, 2 by denis_berthier » Sun Nov 29, 2020 12:29 pm
- 23 Replies
- 2224 Views
- Last post by denis_berthier
Wed Dec 02, 2020 9:28 am
- Perfectly symmetric patterns
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- SER 12.0 ??
1, 2, 3by denis_berthier » Mon Oct 12, 2020 6:25 am - 31 Replies
- 3806 Views
- Last post by denis_berthier
Mon Nov 09, 2020 3:49 pm
- SER 12.0 ??
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- New Sudoku Technique (Cracking the Cryptic)
by Pupp » Tue Oct 13, 2020 10:54 pm - 4 Replies
- 9561 Views
- Last post by StrmCkr
Thu Oct 15, 2020 5:02 am
- New Sudoku Technique (Cracking the Cryptic)
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- WOOOOOOOOOOOOOOT !!!!!!!!!!!!!!!!!!
1, 2by Pupp » Fri Jul 17, 2020 3:07 am - 18 Replies
- 2133 Views
- Last post by Pupp
Mon Oct 12, 2020 9:13 pm
- WOOOOOOOOOOOOOOT !!!!!!!!!!!!!!!!!!
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- Export Puzzles to Hudoku
by Forumer » Wed Sep 30, 2020 2:38 pm - 5 Replies
- 1052 Views
- Last post by Pupp
Fri Oct 09, 2020 2:28 am
- Export Puzzles to Hudoku
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- Difficulty question
1, 2by Pupp » Tue Sep 15, 2020 4:11 am - 16 Replies
- 1857 Views
- Last post by Pupp
Thu Oct 08, 2020 12:10 am
- Difficulty question
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- Row 2 Completion Counts
by Mathimagics » Sun Oct 04, 2020 11:24 am
- 2 Replies
- 857 Views
- Last post by Mathimagics
Tue Oct 06, 2020 7:28 am
- Row 2 Completion Counts
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- I implemented a new rule for SE in my solver.
by yzfwsf » Wed Sep 30, 2020 12:54 pm
- 3 Replies
- 900 Views
- Last post by SpAce
Thu Oct 01, 2020 3:47 am
- I implemented a new rule for SE in my solver.
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- Solving Puzzles: Creative -vs- Rigorous
by Pupp » Wed Sep 16, 2020 1:29 am - 8 Replies
- 1076 Views
- Last post by Pupp
Thu Sep 24, 2020 2:24 pm
- Solving Puzzles: Creative -vs- Rigorous
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- Pi
by m_b_metcalf » Fri Sep 11, 2020 2:58 pm - 14 Replies
- 1323 Views
- Last post by m_b_metcalf
Mon Sep 14, 2020 11:56 am
- Pi
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- Minisat hardness
by tdillon » Wed Jul 22, 2020 10:13 am
- 13 Replies
- 1423 Views
- Last post by Leren
Wed Sep 09, 2020 9:36 am
- Minisat hardness
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- Technique name?
by Pupp » Mon Sep 07, 2020 3:30 pm - 1 Replies
- 812 Views
- Last post by Hajime
Mon Sep 07, 2020 4:43 pm
- Technique name?
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- How to identify a puzzle?
by jco » Thu Sep 03, 2020 7:49 pm - 12 Replies
- 1162 Views
- Last post by jco
Sun Sep 06, 2020 9:03 pm
- How to identify a puzzle?
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- Grids containing a 21 but no 20
1, 2by blue » Wed Jun 26, 2019 5:16 pm - 18 Replies
- 2953 Views
- Last post by Mathimagics
Tue Sep 01, 2020 9:13 am
- Grids containing a 21 but no 20
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- Copy / past diagrams
1, 2by Pupp » Thu Aug 27, 2020 2:58 pm - 19 Replies
- 1892 Views
- Last post by SpAce
Sat Aug 29, 2020 3:03 pm
- Copy / past diagrams
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- Minlex Form: Min and Max Lists / Chaining
1, 2 by holdout » Sun Jul 31, 2011 10:07 pm
- 22 Replies
- 5503 Views
- Last post by Mathimagics
Thu Aug 27, 2020 6:40 am
- Minlex Form: Min and Max Lists / Chaining
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- Sudoku Collection
by Pupp » Fri Aug 14, 2020 2:14 am - 9 Replies
- 2107 Views
- Last post by Pupp
Tue Aug 25, 2020 5:09 pm
- Sudoku Collection
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- DOES ANYONE KNOW WHAT'S THE BEST WAY TO RATE A SUDOKU?
by MADDY_KAPUR » Thu Jul 02, 2020 4:57 am - 13 Replies
- 1571 Views
- Last post by Pupp
Sun Aug 23, 2020 3:11 pm
- DOES ANYONE KNOW WHAT'S THE BEST WAY TO RATE A SUDOKU?
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- Sudoku raters / rating puzzle difficulty
by Pupp » Thu Aug 13, 2020 1:18 am - 3 Replies
- 1073 Views
- Last post by denis_berthier
Fri Aug 21, 2020 5:58 am
- Sudoku raters / rating puzzle difficulty
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- 17 clue puzzle difficulty
by Pupp » Wed Aug 12, 2020 7:38 pm - 7 Replies
- 1287 Views
- Last post by Pupp
Fri Aug 14, 2020 4:07 am
- 17 clue puzzle difficulty
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