Calcudoku puzzle forum

Forum
- Announcements
  
  New features on the site
  
  187
  Topics
  
  1814
  Posts
  
  Re: site suffered another DDO…
  by pnm » Tue Apr 14, 2026 9:16 pm
- Calcudoku General
  
  Anything that doesn't fit in the other forums
  
  384
  Topics
  
  4030
  Posts
  
  Re: The darn 9 x 9 pattern (T…
  by frederick » Thu Apr 02, 2026 3:17 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.
  
  237
  Topics
  
  1705
  Posts
  
  Re: April 7th 9x9
  by eclipsegirl » Wed Apr 08, 2026 11:47 pm
- Timed Puzzles
  
  For discussion of the puzzles against the clock, their scoring, strategies, etc.
  
  137
  Topics
  
  1494
  Posts
  
  Re: no-op timed puzzle?
  by pnm » Wed Apr 08, 2026 1:19 am
- 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 7:40 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 3:54 pm
- Other number stuff
  
  Any other math / number / puzzle / etc. related topics
  
  41
  Topics
  
  232
  Posts
  
  Re: general article about doi…
  by spacecadet » Mon Apr 06, 2026 10:13 pm
- Bugs and errors
  
  Report anything that's broken.
  
  382
  Topics
  
  2297
  Posts
  
  Re: the site is lagging
  by pnm » Wed Apr 15, 2026 12:58 am

Forum