Calcudoku puzzle forum

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- Announcements
  
  New features on the site
  
  186
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  1805
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  Re: another anniversary
  by bram » Tue Feb 10, 2026 11:10 pm
- Calcudoku General
  
  Anything that doesn't fit in the other forums
  
  379
  Topics
  
  4015
  Posts
  
  Re: ways to check for unsolve…
  by eclipsegirl » Wed Feb 11, 2026 5:01 am
- Solving strategies and tips
  
  For questions and answers about how to solve Calcudokus
  
  86
  Topics
  
  666
  Posts
  
  AIC
  by billa » Sun Jul 27, 2025 1:44 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.
  
  236
  Topics
  
  1703
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  Re: Newsletter 12 Help
  by eclipsegirl » Sat Jan 03, 2026 3:11 am
- Timed Puzzles
  
  For discussion of the puzzles against the clock, their scoring, strategies, etc.
  
  134
  Topics
  
  1486
  Posts
  
  Re: become #1 across the boar…
  by bram » Sat Nov 08, 2025 9:47 pm
- Killer Sudoku
  
  For discussion of the site's Killer Sudoku puzzles.
  
  60
  Topics
  
  442
  Posts
  
  Re: Easy killer sudoku
  by paulv66 » Mon Mar 25, 2024 8:40 pm
- 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 4:54 pm
- Other number stuff
  
  Any other math / number / puzzle / etc. related topics
  
  40
  Topics
  
  230
  Posts
  
  puzzles good for your brain
  by pnm » Mon Sep 22, 2025 6:55 pm
- Bugs and errors
  
  Report anything that's broken.
  
  378
  Topics
  
  2266
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  Re: Rankings: All time score …
  by pnm » Mon Feb 02, 2026 2:12 pm

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