Sudoku: the puzzle
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General
Everything about Sudoku that doesn't fit in one of the other sections - 1361 Topics
- 23897 Posts
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Last postThe hardest sudoku 3 ...
by champagne
Fri Nov 14, 2025 9:52 am
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General
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Puzzles
Post puzzles for others to solve here. - 5565 Topics
- 39658 Posts
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Last postfalse TH sol 452307986
by champagne
Sat Nov 15, 2025 8:17 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 - 1559 Topics
- 12449 Posts
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Last postList of First & ...
by 1to9only
Sat Aug 09, 2025 8:43 am
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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 - 1380 Topics
- 20982 Posts
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Last postPattern Overlay Method
by P.O.
Tue Nov 11, 2025 6:36 am
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Advanced solving techniques
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Interactive games
Interactive on-site game threads go here - 22 Topics
- 60678 Posts
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Last postPatterns Game ...
by Hajime
Mon Mar 03, 2025 6:14 pm
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Interactive games
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Software
Programs which generate, solve, and analyze Sudoku puzzles - 759 Topics
- 6874 Posts
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Last postCSP-Rules, SudoRules, ...
by denis_berthier
Sat Nov 15, 2025 7:51 am
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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
- 27448 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
- 13762 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
- 21760 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
- 128708 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
- 11646 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
- 10869 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
- 16640 Views
- Last post by Animator
Wed Dec 28, 2005 12:58 am
- New topics - How to ask for help
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- false TH sol 452307986
by champagne » Sat Nov 15, 2025 8:17 am - 0 Replies
- 3 Views
- Last post by champagne
Sat Nov 15, 2025 8:17 am
- false TH sol 452307986
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- CSP-Rules, SudoRules, KakuRules...
1 ... 7, 8, 9by denis_berthier » Wed Aug 19, 2020 10:25 am - 120 Replies
- 51330 Views
- Last post by denis_berthier
Sat Nov 15, 2025 7:51 am
- CSP-Rules, SudoRules, KakuRules...
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- Puzzle 319
by P.O. » Wed Nov 12, 2025 4:38 pm - 3 Replies
- 44 Views
- Last post by Cenoman
Fri Nov 14, 2025 8:50 pm
- Puzzle 319
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- 2 TH in sol grid 200719884
by champagne » Tue Nov 11, 2025 2:18 pm - 3 Replies
- 113 Views
- Last post by marek stefanik
Thu Nov 13, 2025 8:18 pm
- 2 TH in sol grid 200719884
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- Puzzle 318
by P.O. » Sun Nov 09, 2025 4:47 pm - 4 Replies
- 62 Views
- Last post by P.O.
Wed Nov 12, 2025 4:35 pm
- Puzzle 318
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- gurth symmetrical placement
by urhegyi » Sun Nov 09, 2025 10:15 pm - 1 Replies
- 74 Views
- Last post by Hajime
Wed Nov 12, 2025 4:32 pm
- gurth symmetrical placement
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- The BxB classification of T&E(2) puzzles
1 ... 24, 25, 26by denis_berthier » Thu Sep 07, 2023 12:10 pm - 386 Replies
- 67154 Views
- Last post by coloin
Tue Nov 11, 2025 12:59 pm
- The BxB classification of T&E(2) puzzles
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- (1+BRT) expansion paths within T&E(n) and beyond
1 ... 5, 6, 7by denis_berthier » Sun Apr 06, 2025 5:37 am - 104 Replies
- 44945 Views
- Last post by denis_berthier
Tue Nov 11, 2025 6:51 am
- (1+BRT) expansion paths within T&E(n) and beyond
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- another almost DJE rating SE 11.5
by champagne » Sun Nov 09, 2025 2:45 pm - 2 Replies
- 81 Views
- Last post by champagne
Mon Nov 10, 2025 2:24 pm
- another almost DJE rating SE 11.5
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- Puzzle 317
by P.O. » Wed Nov 05, 2025 4:28 pm - 3 Replies
- 49 Views
- Last post by P.O.
Sun Nov 09, 2025 4:45 pm
- Puzzle 317
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- old puzzle from potential hardest
1, 2by champagne » Wed Nov 05, 2025 8:46 am - 16 Replies
- 245 Views
- Last post by champagne
Sat Nov 08, 2025 8:06 am
- old puzzle from potential hardest
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- Proposal for a canonical puzzle.
1, 2by champagne » Tue Oct 29, 2024 5:23 pm - 19 Replies
- 9253 Views
- Last post by champagne
Thu Nov 06, 2025 7:56 pm
- Proposal for a canonical puzzle.
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- Sudoku OCR
by yzfwsf » Wed Nov 05, 2025 1:14 am - 1 Replies
- 58 Views
- Last post by Maxito_Bahiense
Thu Nov 06, 2025 3:09 am
- Sudoku OCR
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- Puzzle 316
by P.O. » Sun Nov 02, 2025 5:15 pm - 4 Replies
- 60 Views
- Last post by P.O.
Wed Nov 05, 2025 4:27 pm
- Puzzle 316
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- Steve Stumble 10-31-2025
by SteveG48 » Fri Oct 31, 2025 9:45 pm - 4 Replies
- 89 Views
- Last post by pjb
Tue Nov 04, 2025 12:38 am
- Steve Stumble 10-31-2025
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- Puzzle 315
by P.O. » Wed Oct 29, 2025 3:35 pm - 4 Replies
- 68 Views
- Last post by P.O.
Sun Nov 02, 2025 5:13 pm
- Puzzle 315
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- solution grids 429410608 321827252 another challenge
by champagne » Sat Nov 01, 2025 10:51 am - 3 Replies
- 99 Views
- Last post by Cenoman
Sat Nov 01, 2025 8:56 pm
- solution grids 429410608 321827252 another challenge
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- solution grid 1339521744 do experts see a special pattern
by champagne » Thu Oct 30, 2025 10:04 am - 7 Replies
- 150 Views
- Last post by champagne
Sat Nov 01, 2025 3:39 am
- solution grid 1339521744 do experts see a special pattern
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- Puzzle 314
by P.O. » Sun Oct 26, 2025 4:26 pm - 4 Replies
- 100 Views
- Last post by P.O.
Wed Oct 29, 2025 3:32 pm
- Puzzle 314
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- Steve Stumble 10-24-2025
by SteveG48 » Fri Oct 24, 2025 8:49 pm - 3 Replies
- 106 Views
- Last post by P.O.
Sun Oct 26, 2025 4:23 pm
- Steve Stumble 10-24-2025
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- Puzzle 313
by P.O. » Fri Oct 24, 2025 4:05 pm - 4 Replies
- 70 Views
- Last post by P.O.
Sun Oct 26, 2025 4:21 pm
- Puzzle 313
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- is this a TH threat
by champagne » Thu Oct 23, 2025 3:43 pm - 9 Replies
- 162 Views
- Last post by champagne
Sat Oct 25, 2025 7:05 pm
- is this a TH threat
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- Puzzle 312
by P.O. » Wed Oct 22, 2025 10:56 am - 5 Replies
- 67 Views
- Last post by P.O.
Fri Oct 24, 2025 4:03 pm
- Puzzle 312
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- Puzzle 311
by P.O. » Sun Oct 19, 2025 12:58 pm - 4 Replies
- 93 Views
- Last post by P.O.
Wed Oct 22, 2025 10:54 am
- Puzzle 311
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- two puzzles with the TH
by champagne » Mon Oct 20, 2025 1:31 pm - 1 Replies
- 147 Views
- Last post by champagne
Tue Oct 21, 2025 8:07 am
- two puzzles with the TH
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- Steve Stumble 10-18-2025
by SteveG48 » Sat Oct 18, 2025 7:12 pm - 6 Replies
- 81 Views
- Last post by Cenoman
Mon Oct 20, 2025 9:11 pm
- Steve Stumble 10-18-2025
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- 17October25
by Yogi » Sat Oct 18, 2025 5:41 pm - 7 Replies
- 108 Views
- Last post by rjamil
Mon Oct 20, 2025 9:09 pm
- 17October25
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- Puzzle 310
by P.O. » Wed Oct 15, 2025 12:03 pm - 5 Replies
- 147 Views
- Last post by P.O.
Sun Oct 19, 2025 12:48 pm
- Puzzle 310
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