Calcudoku puzzle forum

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- Announcements
  
  New features on the site
  
  189
  Topics
  
  1842
  Posts
  
  Re: site suffered another DDO…
  by pnm » Fri Sep 11, 2026 11:16 pm
- Calcudoku General
  
  Anything that doesn't fit in the other forums
  
  387
  Topics
  
  4056
  Posts
  
  Re: consecutive days?
  by pnm » Sat Sep 12, 2026 8:27 pm
- Solving strategies and tips
  
  For questions and answers about how to solve Calcudokus
  
  87
  Topics
  
  669
  Posts
  
  Re: Calcudoku Solver/Grader
  by pnm » Tue Mar 17, 2026 10:19 pm
- Specific puzzles / your own puzzles (Calcudoku / Killer Sudoku)
  
  Discuss a specific puzzle (e.g. "the 8x8 difficult Calcudoku of Thursday"), or post puzzles you designed yourself.
  
  238
  Topics
  
  1709
  Posts
  
  Re: someone stuck on a Calcud…
  by frederick » Mon Apr 20, 2026 9:44 pm
- Timed Puzzles
  
  For discussion of the puzzles against the clock, their scoring, strategies, etc.
  
  139
  Topics
  
  1497
  Posts
  
  Re: 14
  by eclipsegirl » Fri Aug 21, 2026 10:12 am
- Killer Sudoku
  
  For discussion of the site's Killer Sudoku puzzles.
  
  61
  Topics
  
  448
  Posts
  
  Re: The figures on the puzzle…
  by pnm » Tue Apr 21, 2026 2:12 am
- Sudoku solving / your own Sudokus / your own other puzzles
  
  For discussion of the site's Sudoku puzzles, creating Sudokus, variants, solving strategies, etc.
  
  64
  Topics
  
  161
  Posts
  
  Re: I don't understand the so…
  by vivivi » Tue Jan 27, 2026 3:54 pm
- Other number stuff
  
  Any other math / number / puzzle / etc. related topics
  
  42
  Topics
  
  233
  Posts
  
  if the Calcudoku site had bee…
  by pnm » Mon May 04, 2026 3:26 pm
- Bugs and errors
  
  Report anything that's broken.
  
  387
  Topics
  
  2327
  Posts
  
  Re: should the special/newsle…
  by pnm » Sat Sep 12, 2026 3:05 pm
Nederlands
- Aankondigingen
  
  Over nieuwe dingen op de site
  
  24
  Topics
  
  59
  Posts
  
  Re: Calcudoku vakantie puzzel…
  by pnm » Tue Jul 19, 2022 7:03 pm
- Calcudoku Algemeen
  
  Alles wat niet in de andere forums past
  
  16
  Topics
  
  71
  Posts
  
  Re: Betaalprobleem bij Amazon
  by nicow » Thu Nov 27, 2025 3:37 pm
- Oplostips en strategieën
  
  Vraag & antwoord over hoe de puzzels op te lossen
  
  5
  Topics
  
  17
  Posts
  
  Re: Xmas2025
  by pnm » Thu Dec 18, 2025 7:19 pm
Italiano
- Calcudoku Generale
  
  13
  Topics
  
  60
  Posts
  
  Re: schemi per abbonati
  by pnm » Fri Apr 17, 2026 1:36 pm
- Strategie e consigli per risolvere
  
  6
  Topics
  
  28
  Posts
  
  Re: Per i nuovi adepti
  by clm » Thu Jun 22, 2017 6:46 pm
Español
- Avisos
  
  Nuevas funcionalidades en la página
  
  5
  Topics
  
  9
  Posts
  
  Envía tu propio rompecabezas
  by calcpnm » Tue Oct 21, 2025 6:19 pm
- Calcudoku - General
  
  Cualquier cosa que no quepa en los otros foros
  
  3
  Topics
  
  7
  Posts
  
  Buen video de YouTube de Calc…
  by pnm » Thu Sep 04, 2025 2:01 pm
- Estrategias de solución y aspectos relevantes
  
  Para preguntas y respuestas sobre cómo resolver los crucigramas
  
  8
  Topics
  
  10
  Posts
  
  Re: Operador 'bitwise OR' |
  by taburona82 » Tue Mar 04, 2014 3:11 pm

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