Sudoku: the puzzle
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General
Everything about Sudoku that doesn't fit in one of the other sections - 1361 Topics
- 23920 Posts
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Last postHodoku Rating Anomaly ?
by champagne
Fri Nov 28, 2025 9:00 am
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General
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Puzzles
Post puzzles for others to solve here. - 5576 Topics
- 39738 Posts
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Last postskfr 9.7 after th
by eleven
Fri Dec 05, 2025 12:37 pm
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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
- 20992 Posts
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Last postPattern Overlay Method
by StrmCkr
Fri Nov 28, 2025 6:16 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
- 27492 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
- 13838 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
- 21796 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
- 128925 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
- 11666 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
- 10893 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
- 16672 Views
- Last post by Animator
Wed Dec 28, 2005 12:58 am
- New topics - How to ask for help
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- skfr 9.7 after th
by champagne » Wed Dec 03, 2025 4:49 pm - 9 Replies
- 130 Views
- Last post by eleven
Fri Dec 05, 2025 12:37 pm
- skfr 9.7 after th
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- Puzzle 323
by P.O. » Mon Dec 01, 2025 4:08 pm - 2 Replies
- 72 Views
- Last post by jco
Thu Dec 04, 2025 11:58 am
- Puzzle 323
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- from skfr 11.2 to BTTE
by champagne » Tue Dec 02, 2025 8:21 am - 3 Replies
- 83 Views
- Last post by champagne
Tue Dec 02, 2025 8:22 pm
- from skfr 11.2 to BTTE
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- Steve Stumble 11-29-2025
by SteveG48 » Sat Nov 29, 2025 4:55 pm - 3 Replies
- 67 Views
- Last post by Cenoman
Sun Nov 30, 2025 5:05 pm
- Steve Stumble 11-29-2025
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- Puzzle 322
by P.O. » Fri Nov 28, 2025 4:41 pm - 4 Replies
- 79 Views
- Last post by P.O.
Sun Nov 30, 2025 4:19 pm
- Puzzle 322
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- Puzzle 321
by P.O. » Mon Nov 24, 2025 5:05 pm - 4 Replies
- 135 Views
- Last post by P.O.
Fri Nov 28, 2025 4:40 pm
- Puzzle 321
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- Hodoku Rating Anomaly ?
by Yogi » Wed Sep 17, 2025 10:45 am - 8 Replies
- 3332 Views
- Last post by champagne
Fri Nov 28, 2025 9:00 am
- Hodoku Rating Anomaly ?
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- Puzzle 320
1, 2by P.O. » Sun Nov 16, 2025 2:02 pm - 16 Replies
- 255 Views
- Last post by rjamil
Tue Nov 25, 2025 2:24 pm
- Puzzle 320
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- where is the exotic pattern here
by champagne » Sun Nov 23, 2025 10:38 am - 4 Replies
- 116 Views
- Last post by champagne
Mon Nov 24, 2025 10:55 am
- where is the exotic pattern here
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- Templates as patterns
1 ... 8, 9, 10by denis_berthier » Fri Oct 18, 2024 3:58 am - 138 Replies
- 22167 Views
- Last post by denis_berthier
Sat Nov 22, 2025 5:42 am
- Templates as patterns
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- Steve Stumble 11-21-2025
by SteveG48 » Fri Nov 21, 2025 2:05 pm - 5 Replies
- 71 Views
- Last post by rjamil
Sat Nov 22, 2025 5:15 am
- Steve Stumble 11-21-2025
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- Steve Hodoku 11-20-2025
by SteveG48 » Thu Nov 20, 2025 7:36 pm - 4 Replies
- 80 Views
- Last post by P.O.
Fri Nov 21, 2025 5:26 pm
- Steve Hodoku 11-20-2025
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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 - 145 Replies
- 31919 Views
- Last post by denis_berthier
Wed Nov 19, 2025 4:18 am
- T&E(3) Puzzles (split from "hardest sudokus" thread)
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- 17November25
by Yogi » Sun Nov 16, 2025 7:56 pm - 4 Replies
- 99 Views
- Last post by jco
Tue Nov 18, 2025 4:09 pm
- 17November25
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- false TH sol 452307986
by champagne » Sat Nov 15, 2025 8:17 am - 10 Replies
- 196 Views
- Last post by champagne
Tue Nov 18, 2025 9:36 am
- false TH sol 452307986
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- Puzzle 319
by P.O. » Wed Nov 12, 2025 4:38 pm - 4 Replies
- 95 Views
- Last post by P.O.
Sun Nov 16, 2025 2:00 pm
- Puzzle 319
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- CSP-Rules, SudoRules, KakuRules...
1 ... 7, 8, 9by denis_berthier » Wed Aug 19, 2020 10:25 am - 120 Replies
- 51820 Views
- Last post by denis_berthier
Sat Nov 15, 2025 7:51 am
- CSP-Rules, SudoRules, KakuRules...
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- 2 TH in sol grid 200719884
by champagne » Tue Nov 11, 2025 2:18 pm - 3 Replies
- 159 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
- 94 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
- 113 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
- 68054 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
- 45341 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
- 109 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
- 71 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
- 277 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
- 9348 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
- 92 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
- 88 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
- 106 Views
- Last post by pjb
Tue Nov 04, 2025 12:38 am
- Steve Stumble 10-31-2025
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