Sudoku: the puzzle
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General
Everything about Sudoku that doesn't fit in one of the other sections - 1364 Topics
- 24013 Posts
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Last postSudoku space
by Maq777
Fri Apr 10, 2026 4:48 pm
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General
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Puzzles
Post puzzles for others to solve here. - 5626 Topics
- 39996 Posts
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Last postSteve Stumble 4-10-2026
by pjb
Sat Apr 11, 2026 2:55 am
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Puzzles
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Help with puzzles and solving techniques
Post the puzzle or solving technique that's causing you trouble and someone will help - 1564 Topics
- 12467 Posts
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Last postOutside sudoku help
by 1to9only
Fri Apr 10, 2026 10:07 pm
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Help with puzzles and solving techniques
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Advanced solving techniques
Advanced methods and approaches for solving Sudoku puzzles - 1381 Topics
- 21057 Posts
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Last postXYZ-Ring
by rjamil
Wed Feb 18, 2026 2:09 am
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Advanced solving techniques
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Interactive games
Interactive on-site game threads go here - 22 Topics
- 60690 Posts
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Last postPatterns Game ...
by dobrichev
Fri Apr 10, 2026 2:33 pm
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Interactive games
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Software
Programs which generate, solve, and analyze Sudoku puzzles - 762 Topics
- 6937 Posts
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Last post3.77us Solver(2.8G ...
by champagne
Wed Apr 08, 2026 5:54 pm
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Software
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- Puzzle collections sorted by solving qualities
by tso » Thu Aug 03, 2006 5:38 pm - 14 Replies
- 27909 Views
- Last post by denis_berthier
Fri Sep 08, 2023 4:39 am
- Puzzle collections sorted by solving qualities
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- List of Acronyms
by Wecoc » Tue Jan 21, 2020 11:18 pm - 10 Replies
- 14269 Views
- Last post by denis_berthier
Fri Mar 04, 2022 7:24 am
- List of Acronyms
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- Places to go for solving tips
by Ruud » Sun Jan 20, 2008 10:31 pm - 8 Replies
- 22246 Views
- Last post by mac_sudo
Sun Jun 21, 2020 11:43 pm
- Places to go for solving tips
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- Sudokus of Shame
1 ... 4, 5, 6
by Moschopulus » Thu Feb 02, 2006 1:19 am
- 86 Replies
- 130476 Views
- Last post by enxio27
Tue Dec 11, 2018 2:53 pm
- Sudokus of Shame
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- What this forum is for
by JasonLion-Admin » Thu May 27, 2010 1:29 pm - 0 Replies
- 11806 Views
- Last post by JasonLion-Admin
Thu May 27, 2010 1:29 pm
- What this forum is for
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- Interactive games forum decorum
by g.r.emlin » Sat May 22, 2010 5:31 am - 0 Replies
- 11009 Views
- Last post by g.r.emlin
Sat May 22, 2010 5:31 am
- Interactive games forum decorum
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- New topics - How to ask for help
by Animator » Wed Dec 28, 2005 12:58 am - 0 Replies
- 16855 Views
- Last post by Animator
Wed Dec 28, 2005 12:58 am
- New topics - How to ask for help
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- Steve Stumble 4-10-2026
by SteveG48 » Fri Apr 10, 2026 3:25 pm - 4 Replies
- 37 Views
- Last post by pjb
Sat Apr 11, 2026 2:55 am
- Steve Stumble 4-10-2026
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- Outside sudoku help
by Barrie2 » Sun Mar 29, 2026 12:24 pm - 2 Replies
- 56 Views
- Last post by 1to9only
Fri Apr 10, 2026 10:07 pm
- Outside sudoku help
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- Sudoku space
1 ... 5, 6, 7by m_b_metcalf » Fri Mar 23, 2007 2:01 am - 101 Replies
- 64054 Views
- Last post by Maq777
Fri Apr 10, 2026 4:48 pm
- Sudoku space
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- Steve Hodoku 4-9-2026
by SteveG48 » Thu Apr 09, 2026 5:48 pm - 3 Replies
- 49 Views
- Last post by Cenoman
Fri Apr 10, 2026 12:26 pm
- Steve Hodoku 4-9-2026
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- In search of the 62208 orbital model
1, 2by Maq777 » Mon Mar 23, 2026 1:24 am - 19 Replies
- 324 Views
- Last post by Maq777
Thu Apr 09, 2026 4:26 pm
- In search of the 62208 orbital model
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- Understanding notation for A Continuous Nice Loop
by brian27 » Sun Jan 12, 2025 3:47 pm - 1 Replies
- 23 Views
- Last post by Pat-Moderator
Thu Apr 09, 2026 8:23 am
- Understanding notation for A Continuous Nice Loop
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- 3.77us Solver(2.8G CPU, TestCase:17Sodoku)
1 ... 25, 26, 27 by zhouyundong_2012 » Fri Feb 10, 2012 10:50 pm
- 401 Replies
- 81636 Views
- Last post by champagne
Wed Apr 08, 2026 5:54 pm
- 3.77us Solver(2.8G CPU, TestCase:17Sodoku)
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- Symmetrical & minimal version of WE#1018
by m_b_metcalf » Mon Mar 30, 2026 9:15 am - 4 Replies
- 143 Views
- Last post by Hajime
Wed Apr 08, 2026 4:37 pm
- Symmetrical & minimal version of WE#1018
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- potential 5 digits end in solution grid 324629003
by champagne » Wed Apr 01, 2026 1:32 pm - 4 Replies
- 100 Views
- Last post by champagne
Tue Apr 07, 2026 7:15 am
- potential 5 digits end in solution grid 324629003
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- Frisian Flag SE=7.2
by Hajime » Thu Mar 19, 2026 12:10 pm - 4 Replies
- 160 Views
- Last post by Cenoman
Fri Apr 03, 2026 6:59 pm
- Frisian Flag SE=7.2
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- Symmetrical, minimal & hard version of WE#1018
by m_b_metcalf » Tue Mar 31, 2026 8:00 am - 1 Replies
- 63 Views
- Last post by Cenoman
Wed Apr 01, 2026 1:21 pm
- Symmetrical, minimal & hard version of WE#1018
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- Potential n digits end in solution grid 2889161802
1, 2by champagne » Thu Mar 19, 2026 10:42 am - 17 Replies
- 323 Views
- Last post by coloin
Sun Mar 29, 2026 8:33 pm
- Potential n digits end in solution grid 2889161802
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- Bitwise/Boolean Sudoku Solver
1, 2 by rjamil » Fri Aug 07, 2015 7:51 pm
- 23 Replies
- 9747 Views
- Last post by rjamil
Thu Mar 26, 2026 1:16 pm
- Bitwise/Boolean Sudoku Solver
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- End in n digit pattern
by champagne » Fri Mar 06, 2026 7:57 am - 7 Replies
- 258 Views
- Last post by champagne
Thu Mar 19, 2026 2:28 am
- End in n digit pattern
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- challenging puzzle 2602_3
by champagne » Fri Feb 13, 2026 7:47 am - 2 Replies
- 152 Views
- Last post by shye
Thu Mar 19, 2026 1:05 am
- challenging puzzle 2602_3
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- Hajime's 4 Rings
by m_b_metcalf » Thu Mar 12, 2026 3:51 pm - 6 Replies
- 227 Views
- Last post by Hajime
Tue Mar 17, 2026 11:46 am
- Hajime's 4 Rings
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- Symmetrical SE=8.3
by Hajime » Sun Mar 15, 2026 11:25 am - 3 Replies
- 111 Views
- Last post by Cenoman
Mon Mar 16, 2026 6:10 pm
- Symmetrical SE=8.3
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- finned x-wing strangeness
by speter » Thu Mar 12, 2026 1:08 am - 3 Replies
- 133 Views
- Last post by denis_berthier
Fri Mar 13, 2026 12:35 pm
- finned x-wing strangeness
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- Steve Hodoku 3-10-2026
by SteveG48 » Tue Mar 10, 2026 4:58 pm - 5 Replies
- 116 Views
- Last post by pjb
Thu Mar 12, 2026 2:07 am
- Steve Hodoku 3-10-2026
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- Help to bring down this SE = 10.6 puzzle
by jco » Wed Feb 25, 2026 11:08 pm - 4 Replies
- 218 Views
- Last post by jco
Mon Mar 09, 2026 12:07 am
- Help to bring down this SE = 10.6 puzzle
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- Steve Hodoku 3-7-2026
by SteveG48 » Sat Mar 07, 2026 8:42 pm - 4 Replies
- 96 Views
- Last post by Cenoman
Sun Mar 08, 2026 11:02 pm
- Steve Hodoku 3-7-2026
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- The BxB classification of T&E(2) puzzles
1 ... 26, 27, 28by denis_berthier » Thu Sep 07, 2023 12:10 pm - 408 Replies
- 74251 Views
- Last post by hendrik_monard
Wed Mar 04, 2026 9:22 pm
- The BxB classification of T&E(2) puzzles
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- challenging puzzle 2602_2
by champagne » Fri Feb 13, 2026 6:39 am - 11 Replies
- 396 Views
- Last post by champagne
Tue Mar 03, 2026 4:55 pm
- challenging puzzle 2602_2
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- T&E(3) Puzzles (split from "hardest sudokus" thread)
1 ... 8, 9, 10by mith » Mon Nov 07, 2022 7:24 pm - 148 Replies
- 35206 Views
- Last post by denis_berthier
Tue Mar 03, 2026 11:26 am
- T&E(3) Puzzles (split from "hardest sudokus" thread)
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