# Fourth International Obfuscated C Code Contest View the `index.html` web page for the given winning entry for information on how compile it and how to run the winning program. Look at the winning source and try to figure how it does what it does! You may then wish to look at the Author's remarks for even more details. The [rules](rules.txt) for [1987](../years.html#1987) suggested even more categories than in [1986](../years.html#1986). Hints for what to do and not to do were also given in the [rules](rules.txt). For example, a simple excessive abuse of `/lib/cpp` was discouraged unless the abuse was unusual. The mailboxes for the contest were moved from nsc to amdahl. The practice of posting a preliminary set of rules for the next year was started this year. [Rules](rules.txt) and [results](../years.html#1987) were posted to _comp.lang.c_ and _comp.unix.wizards_ with an announcement in _news.announce.important_. [Micro/Systems Journal](https://www.vintage-computer.com/publications.php?microsystemsjournal) published the 1987 winning entries. [Mary Ann Horton](../authors.html#Mary_Ann_Horton) included a version of the [1987 winning entries](../years.html#1987) in an appendix of her C book [Portable C Software International Edition](https://www.amazon.com/Portable-Software-Mark-R-Horton/dp/0138680507) (published under the name _Mark R Horton_). The first announcement of winning entries at the Summer 87 USENIX was helped by a small fly that danced all over the foils. ## Final Comments **IMPORTANT NOTE**: See [contact.html](../contact.html) for up to date contact details as well as details on how to provide fixes to any of the entries. See also the [IOCCC FAQ](../faq.html) for additional information on the IOCCC.