Logo by winner Matt Zucker

The 21^st IOCCC Competition

The 21^st International Obfuscated C Code Contest has already happened. Please see the news below

Goals of the Contest

• Obfuscate: tr.v. -cated, -cating, -cates.
  1. 1. To render obscure.
     2. To darken.
  2. To confuse: his emotions obfuscated his judgment.
     [LLat. obfuscare, to darken : ob(intensive) + Lat. fuscare,
     to darken < fuscus, dark.] -obfuscation n. obfuscatory adj
     
  
  
• The IOCCC:
  • To write the most Obscure/Obfuscated C program within the rules.
  • To show the importance of programming style, in an ironic way.
  • To stress C compilers with unusual code.
  • To illustrate some of the subtleties of the C language.
  • To provide a safe forum for poor C code. :-)

What's New?

• 2012-10-17
  • The source code for the winners of the 21^st IOCCC has been released.
  
  
• 2012-09-30
  • The winners of the 21st IOCCC have been announced. Congratulations!
  • The winning source will be released later this year after the winners have reviewed the writeup of their entries.
  
  
• 2012-08-21
  • The 21st IOCCC online submission tool is now available.
  
  
• 2012-08-19
  • Version 2012-08-15 of the 21st IOCCC rules and guidelines are now official.
  • The 21st IOCCC did start on 2012-Aug-15 03:14:15 UTC. While the submission server is waiting to be put online, please continue to code and refine your entries.
  • Please check back on 2012-Aug-22 03:14:15 UTC for details on how to submit your entry.
  
  
• 2012-08-14
  • Apologies, the submission server is not yet online. Please check back on 2012-Aug-19 09:26:53 UTC.
  
  
• 2012-08-06
  • Clarified rules 13 and 14 in the Preliminary Rules (currently at version 2012-08-05).
  • Please be sure you have reviewed the latest version of the Preliminary Guidelines (currently at version 2012-07-24).
  
  
• 2012-07-24
  • A "changed" date has been added to both the rules and guidelines files
  • A number of typographical corrections and clarifications to the Preliminary Rules (5 & 21) have been made.
  • A number of typographical corrections and clarifications to the Preliminary Guidelines have been made.
  
  
• 2012-07-22
  • The 21st IOCCC will be open from 2012-Aug-15 03:14:15 UTC to 2012-Sep-14 09:26:53 UTC.
    The Preliminary Rules and Preliminary Guidelines are now available. Changes are marked with '|'.
  
  
• 2012-04-15
  • The results of the 20th IOCCC are now available.
  
  
• 2012-02-05
  • Announcing the 20th IOCCC Winners.
  
  
• 2012-02-04
  • We have selected 14 winners for 20th IOCCC; from CN, DE, FI, GB, IL, JP, MX & US. Winners will be notified in 24 hours.
  
  
• 2012-01-12
  • The 20th IOCCC is now closed. If you missed the deadline, save your submission for a future competition.
  
  
• 2012-01-07
  • Only 5 more days left to enter the 20th IOCCC.
  
  
• 2011-12-01
  • The online submission tool is now available.
  
  

Older news has been archived, but is currently unavailable

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